211At- and 131I-labeled bisphosphonates with high in vivo stability and bone accumulation. (1/53)
Bisphosphonates were synthesized for use as carriers for astatine and iodine radioisotopes to target bone neoplasms. METHODS: Radiohalogenated activated esters were coupled to the amino group in the side chain of the bisphosphonate. The bisphosphonate 3-amino-1-hydroxypropylidene bisphosphonate was combined with four different acylation agents: N-succinimidyl 3-[211At]astatobenzoate, N-succinimidyl 3-[131I]iodobenzoate, N-succinimidyl-5-[211At]astato-3-pyridinecarboxylate and N-succinimidyl-5-[131I]iodo-5-pyridinecarboxylate. The products, 3-[131I]iodobenzamide-N-3-hydroxypropylidene-3,3-bisphosphonate (IBPB), 3-[211At]astato-benzamide-N-3-hydroxypropylidene-3,3-bisphosphonat e (ABPB), 5-[131I]iodopyridine-3-amide-N-3-hydroxypropylidene-3,3-bisphospho nate (IPPB) and 5-[211At]astatopyridine-3-amide-N-3-hydroxypropylidene-3,3-bisphos phonate (APPB), were injected intravenously into Balb/c mice. MIRD and Monte Carlo methods were used on the basis of cumulated activity calculated from biodistribution data to estimate dose to organs and bone segments. RESULTS: All 131I- and 211At-labeled analogs were strongly incorporated into osseous tissue and retained there at stable levels, while a rapid clearance from blood was observed. The bone uptake was found to be similar for 211At- and 131I-labeled bisphosphonate when compared in paired label experiments. Bone uptake and bone-to-tissue ratios were better for IBPB compared with IPPB, and ABPB compared with APPB. All four compounds appeared to be highly resistant to in vivo dehalogenation as indicated by low uptake of 131I/211At in the thyroid gland and stomach. According to dosimetric estimates, the bone surface-to-bone marrow ratio was three times higher with 211At than with 131I. CONCLUSION: Both the beta-particle- and alpha-particle-emitting compounds showed high in vivo stability and excellent affinity for osseous tissue. Further preclinical evaluation is therefore warranted. (+info)Demonstration of highly specific toxicity of the alpha-emitting radioimmunoconjugate(211)At-rituximab against non-Hodgkin's lymphoma cells. (2/53)
The ability of an alpha-emitter conjugated to a chimaeric anti-CD20 monoclonal antibody to kill selectively human B-lymphoma cells in vitro is reported. Two B-lymphoma cell lines RAEL and K422, and normal haematopoietic progenitor cells from human bone marrow aspirates were incubated with(211)At-rituximab (Rituxan(R) or MabTheratrade mark) and plated in clonogenic assays for survival analyses. Following 1 h incubation with(211)At-rituximab, in concentrations which gave an initial activity of 50 kBq ml(-1), a high tumour cell to normal bone marrow cell toxicity ratio was obtained; 4.1 to 1.0 log cell kill. Biodistribution studies of(211)At-rituximab in Balb/c mice showed similar stability as that of the iodinated analogue. The data indicate that testing of(211)At-rituximab in human patients is warranted. (+info)High-level production of alpha-particle-emitting (211)At and preparation of (211)At-labeled antibodies for clinical use. (3/53)
In vitro and in vivo studies in human glioma models suggest that the antitenascin monoclonal antibody 81C6 labeled with the 7.2-h-half-life alpha-particle emitter (211)At might be a valuable endoradiotherapeutic agent for the treatment of brain tumors. The purpose of this study was to develop methods for the production of high levels of (211)At and the radiosynthesis of clinically useful amounts of (211)At-labeled human/mouse chimeric 81C6 antibody. METHODS: (211)At was produced through the (209)Bi(alpha, 2n)(211)At reaction using an internal target system and purified by a dry distillation process. Antibody labeling was accomplished by first synthesizing N-succinimidyl 3-[(211)At]astatobenzoate from the corresponding tri-n-butyl tin precursor and reacting it with the antibody in pH 8.5 borate buffer. Quality control procedures consisted of methanol precipitation, size-exclusion high-performance liquid chromatography (HPLC), and pyrogen and sterility assays, as well as determination of the immunoreactive fraction by a rapid procedure using a recombinant tenascin fragment coupled to magnetic beads. RESULTS: A total of 16 antibody labeling runs were performed. Using beam currents of 50-60 microA alpha-particles and irradiation times of 1.5-4.5 h, the mean (211)At production yield was 27.75 +/- 2.59 MBq/microA.h, and the maximum level of (211)At produced was 6.59 GBq after a 4-h irradiation at 55 microA. The decay-corrected distillation yield was 67% +/- 16%. The yield for the coupling of the (211)At-labeled active ester to the antibody was 76% +/- 8%. The fraction of (211)At activity that eluted with a retention time corresponding to intact IgG on HPLC was 96.0% +/- 2.5%. All preparations had a pyrogen level of <0.125 EU/mL and were determined to be sterile. The mean immunoreactive fraction for these 16 preparations was 83.3% +/- 5.3%. Radiolysis did not interfere with labeling chemistry or the quality of the labeled antibody product. CONCLUSION: These results show that it is feasible to produce clinically relevant activities of (211)At-labeled antibodies and have permitted the initiation of a phase I trial of (211)At-labeled chimeric 81C6 administered directly into the tumor resection cavities of brain tumor patients. (+info)Comparative cellular catabolism and retention of astatine-, bismuth-, and lead-radiolabeled internalizing monoclonal antibody. (4/53)
Monoclonal antibodies (mAbs) labeled with alpha-emitting radionuclides such as (211)At, (212)Bi, (213)Bi, and (212)Pb (which decays by beta-emission to its alpha-emitting daughter, (212)Bi) are being evaluated for their potential applications for cancer therapy. The fate of these radionuclides after cells are targeted with mAbs is important in terms of dosimetry and tumor detection. METHODS: In this study, we attached various radionuclides that result in alpha-emissions to T101, a rapidly internalizing anti-CD5 mAb. We then evaluated the catabolism and cellular retention and compared them with those of (125)I- and (111)In-labeled T101. T101 was labeled with (211)At, (125)I, (205,6)Bi, (111)In, and (203)Pb. CD5 antigen-positive cells, peripheral blood mononuclear cells (PBMNC), and MOLT-4 leukemia cells were used. The labeled T101 was incubated with the cells for 1 h at 4 degrees C for surface labeling. Unbound activity was removed and 1 mL medium added. The cells were then incubated at 37 degrees C for 0, 1, 2, 4, 8, and 24 h. The activity on the cell surface that internalized and the activity on the cell surface remaining in the supernatant were determined. The protein in the supernatant was further precipitated by methanol for determining protein-bound and non-protein-bound radioactivity. Sites of internal cellular localization of radioactivity were determined by Percoll gradient centrifugation. RESULTS: All radiolabeled antibodies bound to the cells were internalized rapidly. After internalization, (205,6)Bi, (203)Pb, and (111)In radiolabels were retained in the cell, with little decrease of cell-associated radioactivity. However, (211)At and (125)I were released from cells rapidly ((211)At < (125)I) and most of the radioactivity in the supernatant was in a non-protein-bound form. Intracellular distribution of radioactivity revealed a transit of the radiolabel from the cell surface to the lysosome. The catabolism patterns of MOLT-4 cells and PBMNC were similar. CONCLUSION: (211)At catabolism and release from cells were somewhat similar to that of (125)I, whereas (205,6)Bi and (203)Pb showed prolonged cell retention similar to that of (111)In. These catabolism differences may be important in the selection of alpha-radionuclides for radioimmunotherapy. (+info)Microdosimetric analysis of alpha-particle-emitting targeted radiotherapeutics using histological images. (5/53)
The purpose of this study was to evaluate the therapeutic efficacy and limitations of alpha-particle-emitting radiolabeled compounds by means of 2-dimensional histological images and distribution of activity on a microscopic level. METHODS: A microdosimetric approach based on histological images is used to analyze the therapeutic effectiveness of alpha-particle-emitting (211)At and (213)Bi conjugated to 201B monoclonal antibody (mAb), which is reactive with murine lung blood vessels for the treatment of EMT-6 lung tumor colonies in nude mice. Autoradiography images were used to define the tissue morphology and activity distribution within lung tissues. Two animal groups were studied: Group A consisted of animals bearing small tumors (<130 micro m) and group B consisted of larger tumors (<600 micro m). Probability density functions (pdf) described the variability in average absorbed dose and survival probability among normal and tumor target cells and, in turn, were used to assess the survival fraction of tumor and normal tissue. RESULTS: The average absorbed dose to tumor cells per unit cumulated activity concentration for animals in group A was 1.10 x 10(-3) and 1.37 x 10(-3) Gy g MBq(-1) s(-1) for (211)At and (213)Bi, respectively, and for animals in group B was 3.8 x 10(-4) and 5.6 x 10(-4) Gy g MBq(-1) s(-1) for (211)At and (213)Bi, respectively. The fraction of tumor cells that received a zero absorbed dose for animals in group A was 0.04% for (213)Bi and 0.2% for (211)At and for animals in group B was 25% for (213)Bi and 31% for (211)At. Both (213)Bi- and (211)At-labeled 201B mAb were effective therapies for animals with small tumors, where predicted therapeutic effectiveness was consistent with experimental findings; however, they were ineffective for animals with larger tumors. CONCLUSION: Microdosimetric methods based on knowledge of tissue morphology and activity distribution on a small-scale level can be a useful tool for evaluating a priori the therapeutic efficacy and limitations of targeted alpha-particle endoradiotherapeutic strategies. (+info)(211)At-labeled and biotinylated effector molecules for pretargeted radioimmunotherapy using poly-L- and poly-D-Lysine as multicarriers. (6/53)
Poly-L- and poly-D-lysine were evaluated as carriers of astatine and biotin for prospective use as effector molecules in pretargeted radioimmunotherapy of micrometastases. The precursor polylysine was derivatized in a three-step, single-pot procedure, including biotinylation with biotin amidocaproic N-hydroxysuccinimide, astatination via the intermediate reagent N-succinimidyl 3-(trimethylstannyl)benzoate, and, finally, charge modification using succinic anhydride. The chemistry was shown to be very facile, with a biotinylation efficiency of 75 +/- 5%, and overall radiochemical yields in the range of 50-70%. After charge modification, no amines could be detected in the final product. The biotin function was unaffected by the chemistry and the radiation, as confirmed by almost complete binding of the effector molecule to avidin beads using a convenient filter tube assay. The effector molecules were evaluated in tumor-free female nude mice with regard to whole-body retention and tissue distribution after i.p. administration. The distribution of the L-isomer effector molecule showed rapid whole-body clearance with low uptake in all tissues, whereas the D-isoform showed whole-body clearance related to uptake in the kidneys. Both D-isomer and L-isomer showed faster blood clearance and generally lower tissue uptakes than labeled antibodies. The normal tissue distribution after the peritoneal administration implies that pretargeting using L-structure polylysine as the effector molecule may give a higher therapeutic index than that achieved in conventional radioimmunotherapy. (+info)Astatine-211-labeled antibodies for treatment of disseminated ovarian cancer: an overview of results in an ovarian tumor model. (7/53)
PURPOSE: The aim of the study was to establish and refine a preclinical model to alpha-immunoradiotherapy of ovarian cancer. EXPERIMENTAL DESIGN: At-211 was produced by cyclotron irradiation of a bismuth-209 target and isolated using a novel dry distillation procedure. Monoclonal antibodies were radiohalogenated with the intermediate reagent N-succinimidyl 3-(trimethylstannyl)benzoate and characterized in terms of radiochemical yield and in vitro binding properties. In vitro OVCAR-3 cells were irradiated using an external Cobalt-60 beam, as reference, or At-211-albumin and labeled antibody. Growth assays were used to establish cell survival. A Monte Carlo program was developed to simulate the energy imparted and the track length distribution. Nude mice were used for studies of WBC depression, with various activities of Tc-99m antibodies, as reference, and At-211 antibodies. In efficacy studies, OVCAR-3 cells were inoculated i.p., and animals were treated 2 weeks later. The animals were either dissected 6 weeks later or followed-up for long-term survival. RESULTS: A rapid distillation procedure, as well as a rapid and high-yield, single-pot labeling procedure, was achieved. From growth inhibition data, the relative biological effectiveness of the alpha-emission for OVCAR-3 cells was estimated to be approximately 5, which is in the same range as found in vivo for hematological toxicity. At-211 MOv18 was found to effectively inhibit the development of tumors and ascites, also resulting in long-term survival without significant toxic effect. CONCLUSIONS: Use of the short-range, high-linear energy transfer alpha-emitter At-211 conjugated to a surface epitope-recognizing monoclonal antibody appears to be highly efficient without significant toxicity in a mouse peritoneal tumor model, urging a Phase I clinical trial. (+info)In vitro cytotoxicity of (211)at-astatide and (131)I-iodide to glioma tumor cells expressing the sodium/iodide symporter. (8/53)
The sodium/iodide symporter (NIS) has been identified as an attractive target for cancer therapy. The efficacy of (131)I-iodide for NIS-expressing tumor therapy may be limited by a combination of poor cellular retention and unfavorable physical characteristics (long physical half-life and low linear-energy-transfer [LET] radiative emissions). On the other hand, (211)At-astatide is also transported by NIS and offers several therapeutic advantages over (131)I-iodide due to its physical characteristics (short half-life, high LET alpha-particle emissions). The objective of this study was to directly compare the radiotoxicity of both radionuclides using a NIS-transfected cultured cell model. METHODS: Cytotoxicity was determined by colony-forming assays. Also, a first-order pharmacokinetic model was used to simulate the closed compartmental system between the medium and cells. Experimental data were then fitted to this model and used to estimate the transfer coefficients between medium and cells, k(m)(c), and between cells and medium, k(c)(m). Using the pharmacokinetic model, the cumulated activity concentrations in the medium and cells were calculated. Monte Carlo transport methods were then used to assess absorbed doses from (131)I and (211)At. RESULTS: (211)At-Astatide was significantly more cytotoxic than (131)I-iodide in this closed compartmental system. For (211)At-astatide, absorbed doses per unit administered activity were 54- to 65-fold higher than for (131)I-iodide. Both NIS-expressing and control cells showed increased sensitivity to (211)At over (131)I, with significantly lower D(0) (absorbed dose required to reduce the survival fraction to e(-1)) and SF(2) (2-Gy survival fraction) values, highlighting the higher intrinsic cytotoxicity of alpha-particles. However, NIS-independent (nonspecific) binding of (211)At-astatide was higher than that of (131)I-iodide, therefore, yielding a lower absorbed dose ratio between NIS-transfected and -nontransfected cells. CONCLUSION: Treatment of NIS-expressing cells with (211)At-astatide resulted in higher absorbed doses and increased cytotoxicity per unit administered activity than that observed with (131)I-iodide. These results suggest that (211)At-astatide may be a promising treatment strategy for the therapy of NIS-expressing tumors. (+info)
Astatine - Wikipedia
Application of astatine-210: Evaluation of astatine distribution and effect of pre-injected iodide in whole body of normal rats...
Periodic Table of Elements: Astatine - At (EnvironmentalChemistry.com)
Periodic Table Element Comparison | Compare Copper vs Astatine | Compare Properties, Structure, Facts
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Astatine
A beta decay mode has been found for all other astatine isotopes except for astatine-213, astatine-214, and astatine-216m. ... Astatine-218 was the first astatine isotope discovered in nature. Astatine-219, with a half-life of 56 seconds, is the longest ... and astatine-212 decays via both modes, while astatine-211 undergoes electron capture. The most stable isotope is astatine-210 ... and this is still the major route used to create the relatively long-lived isotopes astatine-209 through astatine-211. Astatine ...
Astatine bromide
... is produced by the reaction of astatine with an aqueous solution of iodine monobromide: 2 At + 2 IBr → 2 AtBr ... I2 Astatine bromide also can produce by react elemental astatine and bromine: 2 At+Br2→2 AtBr Zuckerman & Hagen 1989, p. 31. ... chemistry of astatine. (Google Books) Zuckerman, J J; Hagen, A P (1989). Inorganic Reactions and Methods, the Formation of ... Astatine bromide is an interhalogen compound with the chemical formula AtBr. ...
Astatine iodide
... is produced by the direct combination of astatine and iodine in a 1:1 molar ratio: 2 At + I2 → 2 AtI Zuckerman ... Astatine iodide is an interhalogen compound with the chemical formula AtI. It is the second heaviest known interhalogen ...
Astatine compounds
... are compounds that contain the element astatine (At). As this element is very radioactive, few compounds ... ISBN 978-0-471-18657-1. (Pages containing links to subscription-only content, Astatine compounds, Astatine, Chemical compounds ... and an astatine-tellurium colloid with tellurium. Astatine is known to react with its lighter homologs iodine, bromine, and ... Astatine is also thought to be capable of forming cations in salts with oxyanions such as iodate or dichromate; this is based ...
Isotopes of astatine
A beta decay mode has been found for all other astatine isotopes except for astatine-213, astatine-214, and astatine-216m. ... and astatine-211 decays by electron capture instead. The most stable isotope of astatine is astatine-210, which has a half-life ... Even though heavier astatine isotopes release less energy, no long-lived astatine isotope exists; this happens due to the ... Among other isotopes: astatine-210 and the lighter isotopes decay by positron emission; astatine-216 and the heavier isotopes ...
Alice Leigh-Smith
In 1942, Leigh-Smith and a Swiss chemist, Walter Minder jointly announced the discovery of element 85 (now called astatine) in ... Nefedov, VD; Norseev, Yu V; Toropova, M A; Khalkin, Vladimir A (1968). "Astatine". Russian Chemical Reviews. 37 (2): 87. ...
Walter Minder
He together with Alice Leigh-Smith announced the discovery of element 85 (now called astatine) in 1940 and 1942. He proposed ... 332, 343-4. ISBN 978-0-19-938334-4. Nefedov, V D; Norseev, Yu V; Toropova, M A; Khalkin, Vladimir A (1968). "Astatine". Russian ...
Bismuth-209
Astatine can also be produced by bombarding forms of 209Bi with alpha particles. Traces of 209Bi have also been used to create ... Barton, G. W.; Ghiorso, A.; Perlman, I. (1951). "Radioactivity of Astatine Isotopes". Physical Review. 82 (1): 13-19. Bibcode: ... V.; Toropova, M. A.; Khalkin, Vladimir A. (1968). "Astatine". Russian Chemical Reviews. 37 (2): 87-98. Bibcode:1968RuCRv..37... ...
Timeline of chemical element discoveries
"85 Astatine". Elements.vanderkrogt.net. Retrieved 2008-09-12. Burdette, S. C.; Thornton, B. F. (2010). "Finding Eka-Iodine: ...
Chemical element
In some presentations, the halogens are not distinguished, with astatine identified as a metalloid and the others identified as ... Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; ... The remaining 6 transient elements (technetium, promethium, astatine, francium, neptunium, and plutonium) occur only rarely, as ... astatine, francium, actinium, and protactinium), and Various synthetic transuranic elements, beginning with americium and ...
List of aqueous ions by element
Astatine, as another example, is highly radioactive, and determining its stable species is "clouded by the extremely low ... M(OH)n + OH− → [M(OH){n+1}]− For some highly radioactive elements, such as astatine and radon, only tracer quantities have been ... Kirby, HW (1985). "Analytical chemistry of astatine". In Kugler, HK; Keller, C (eds.). Gmelin Handbook of Inorganic Chemistry, ... Berlin: Walter de Gruyter.; Hawkes, SJ (2010). "Polonium and astatine are not semimetals'". Journal of Chemical Education. 87 ( ...
Technetium(IV) oxide
Edward Andrews (1959). "Technetium and Astatine Chemistry". Annual Review of Nuclear Science. Annual Reviews. 9: 203-220. doi: ...
Tennessine
Astatine's 6p subshell split is only 3.8 eV, and its 6p1/2 chemistry has already been called "limited". These effects cause ... A later paper predicts the boiling point of tennessine to be 345 °C (that of astatine is estimated as 309 °C, 337 °C, or 370 °C ... For comparison, the figure for hydrogen-like astatine is 1.27 and the figure for hydrogen-like iodine is 1.08. Simple ... With the seven outermost electrons removed, tennessine is finally smaller; 57 pm for tennessine and 61 pm for astatine. The ...
Chang Kang-myoung
... 아스타틴 Astatine), Epiclog, 2017. Uriui sowoneun jeonjaeng (우리의 소원은 전쟁 Our wish is war), Wisdom House, 2016. Daetgeulbudae (댓글부대 ...
Interhalogen
Astatine monoiodide (AtI) is made by direct combination of astatine and iodine. No astatine fluorides have been discovered yet ... Astatine monochloride (AtCl) is made either by the direct combination of gas-phase astatine with chlorine or by the sequential ... Astatine monobromide (AtBr) is made by the direct combination of astatine with either bromine vapour or an aqueous solution of ... Those formed with astatine have a very short half-life due to astatine being intensely radioactive. No interhalogen compounds ...
List of Italian inventions and discoveries
Astatine (co-discovered, in US): Dale R. Corson, Kenneth Ross MacKenzie, and Emilio Segrè are credited with isolating the ... "Astatine - Discoverer - Year of Discovery". periodic-table.org. 11 November 2020. "Alessandro Volta , Biography, Facts, & ...
Metal ions in aqueous solution
Richens, p. 160 Kugler, H. K.; Keller, C. (1985). 'At, Astatine', System No. 8a. Gmelin Handbook of Inorganic and ... A cationic astatine(I) species is inferred from trace-scale experiments in acidic solutions, but it is not clear whether it is ...
Iodine
Astatine goes further, being indeed unstable as At− and readily oxidised to At0 or At+.) The halogens darken in colour as the ... The fifth and sixth halogens, the radioactive astatine and tennessine, are not well-studied due to their expense and ... 800-4 Kugler HK, Keller C (1985). 'At, Astatine', System No. 8a. Gmelin Handbook of Inorganic and Organometallic Chemistry. Vol ... astatine continues the trend with an electronegativity of 2.2). Elemental iodine hence forms diatomic molecules with chemical ...
Polyiodide
King, R. Bruce (2005). "Chlorine, Bromine, Iodine, & Astatine: Inorganic Chemistry". Encyclopedia of Inorganic Chemistry (2nd ...
Electron affinity (data page)
2020). "The electron affinity of astatine". Nat. Commun. 11 (1): 3824. doi:10.1038/s41467-020-17599-2. PMC 7393155. PMID ...
AB
Alabamine, a former name of Astatine. AB Class amplifier, a classification of electric amplifier The category of abelian groups ...
Maryanne Ito
The group, dubbed The Astatine Collective, consists of Freeze as DJ, Sub Z on MPC and audio engineering, Deesarono as a ... Hitt, Christine (October 25, 2014). "Maryanne Ito and the Astatine Collective". Hallowballo. Retrieved November 7, 2014. "UK ... and in October 2014 she and local group The Astatine Collective performed at Hallowbaloo. She was also a performer at the Great ... She has toured Hawaii with The Astatine Collective as support, and in the summer of 2015 she toured Europe, performing at ...
List of nonmetal monographs
Astatine is counted as a metal. Emsley J 1971, The Inorganic Chemistry of the Non-metals, Methuen Educational, London, ISBN 978 ...
Period 6 element
Attempts to synthesize astatine fluoride have been met with failure. The second longest-living astatine-211 is the only one to ... the most stable astatine-210 and the industrially used astatine-211 are not. Radon is a chemical element with symbol Rn and ... astatine is the least abundant element in Earth's crust among non-transuranium elements. Among astatine isotopes, six (with ... Astatine is a radioactive chemical element with the symbol At and atomic number 85. It occurs on the Earth only as the result ...
Halogen
These isotopes are astatine-215, astatine-217, astatine-218, and astatine-219. A total of 31 isotopes of astatine have been ... There are no stable isotopes of astatine. However, there are four naturally occurring radioactive isotopes of astatine produced ... Astatine, although very scarce, has been found in micrograms in the earth. It has no known biological role because of its high ... Astatine is very radioactive and thus highly dangerous, but it has not been produced in macroscopic quantities and hence it is ...
Polyhalogen ions
Astatine: Inorganic Chemistry". Encyclopedia of Inorganic Chemistry (2nd ed.). Wiley. p. 747. ISBN 9780470862100. Housecroft, ...
Radon compounds
Astatine compounds Xenon compounds Keller, Cornelius; Wolf, Walter; Shani, Jashovam. "Radionuclides, 2. Radioactive Elements ...
Metalloid
... it has been presumed that astatine would be a metal if it could form a condensed phase. Astatine may be metallic in the liquid ... complexes of astatine cations ... complex anions of trivalent astatine ... as well as complexes with a variety of organic ... A further option is to include astatine both as a nonmetal and as a metalloid. A visible piece of astatine would be immediately ... Astatine has an IE of 215 kJ/mol (899 kJ/mol) and an EN of 2.2. Its electronic band structure is not known with any certainty. ...
Kenneth Ross MacKenzie
"Kenneth MacKenzie, 90; Helped Discover Astatine, Built UCLA's Atom Smasher". Los Angeles Times. "In Memoriam" (PDF). UCLA Today ... synthesized the element astatine, in 1940. MacKenzie received his PhD under Ernest Lawrence at Lawrence Livermore National ...
Properties of nonmetals (and metalloids) by group
All of astatine's isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. Astatine is ... Astatine is predicted to be a semiconductor, with a band gap of about 0.7 eV. It has a moderate ionisation energy (900 kJ/mol ... Astatine, is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various ... which is rather low for a nonmetal and close to those of tellurium and astatine. The oganesson fluorides OgF2 and OgF4 are ...
Isotope data for astatine-219 in the Periodic Table
Detailed decay information for the isotope astatine-219 including decay chains and daughter products. ... Astatine Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Astatine Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As ... Isotopes of Astatine (click to see decay chain):. 193At 194At 195At 196At 197At 198At 199At 200At 201At 202At 203At 204At 205At ... Astatine Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Isotope data for astatine-214 in the Periodic Table
Detailed decay information for the isotope astatine-214 including decay chains and daughter products. ... Astatine Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Astatine Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As ... Isotopes of Astatine (click to see decay chain):. 193At 194At 195At 196At 197At 198At 199At 200At 201At 202At 203At 204At 205At ... Astatine Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Sample of the element Astatine in the Periodic Table
The rock probably contains on the order of a few atoms of astatine at any one time, as part of the complex decay chain of the ... In no meaningful way is astatine itself visible in the sample, but sadly thats about the best you can do with an element like ... This mineral, Autunite, appears in my Photographic Periodic Table Poster representing astatine, because this highly unstable ...
Isotope data for astatine-198 in the Periodic Table
Detailed decay information for the isotope astatine-198 including decay chains and daughter products. ... Astatine Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Astatine Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As ... Isotopes of Astatine (click to see decay chain):. 193At 194At 195At 196At 197At 198At 199At 200At 201At 202At 203At 204At 205At ... Astatine Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Isotope data for astatine-210 in the Periodic Table
Detailed decay information for the isotope astatine-210 including decay chains and daughter products. ... Astatine Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Astatine Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As ... Isotopes of Astatine (click to see decay chain):. 193At 194At 195At 196At 197At 198At 199At 200At 201At 202At 203At 204At 205At ... Astatine Main Page. Black White Gray. B. C. N. O. F. Ne. ...
Technical data for the element Astatine in the Periodic Table
Complete and detailed technical data about the element Astatine in the Periodic Table. ... Astatine Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Astatine Isotope Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As. ... Astatine Main Page. Black White Gray. B. C. N. O. F. Ne. ... Technical data for Astatine. Click any property name to see ... Notes on the properties of Astatine:. Atomic Mass: Atomic mass number given for longest lived isotope. Up to date, curated data ...
Astatine Adventures, an indie Visual Novel game for RPG Maker VX :: rpgmaker.net
Astatine Adventures, an indie game made with RPG Maker VX. Get downloads, images and news! ... The name Astatine comes from the chemical of the same name, Astatine is a highly unstable radioactive chemical element. ... Astatine reminds me a bit of Rorona (Roronas Atelier). ;) I like the idea of the plot. The voice actors doing a great job! I ... Astatine reminds me a bit of Rorona (Roronas Atelier). ;) I like the idea of the plot. The voice actors doing a great job! I ...
Hartenjagentoernooi met Astatine-W.S.G. Abacus
Astatine synonyms | Best 3 synonyms for astatine
Hearts Tournament with Astatine-W.S.G. Abacus
Duke, George, Cole & Astatine at the Harmonie | 3 songs bonn
George Gershwin and Cole Porter would all have enjoyed Astatines excellent concert at Bonn Harmonie on Sunday. Put together ... Check out Astatines homepage for details of where you can enjoy her wonderful voice in the coming months (thanks to the ... It says a great deal for her talent and love of the material that Astatine not only takes them on but finishes each one to loud ... On that basis, Astatine certainly struck gold with the quartet around her. Martin Gjakonovski and Roland Höppner on contra-bass ...
Unexpected Behavior of the Heaviest Halogen Astatine in the Nucleophilic Substitution of Aryliodonium Salts - PubMed
Unexpected Behavior of the Heaviest Halogen Astatine in the Nucleophilic Substitution of Aryliodonium Salts François Guérard 1 ... Halogen-like properties of the Al13 cluster mimicking astatine. Molina B , Soto JR , Castro JJ . Molina B , et al. Phys Chem ... 211 At and 125 I-Labeling of (Hetero)Aryliodonium Ylides: Astatine Wins Again. Maingueneau C, Berdal M, Eychenne R, Gaschet J, ... Unexpected Behavior of the Heaviest Halogen Astatine in the Nucleophilic Substitution of Aryliodonium Salts François Guérard et ...
Astatine
astatine | Books & Boots
All posts tagged astatine. The Periodic Kingdom: A Journey Into the Land of the Chemical Elements by Peter Atkins (1995). ... Halogens The top four elements of Group 17, from fluorine (F) through astatine (At), represent one of two subsets of the non- ... Many periodic tables will feature a highlighted staircase line below the diagonal connecting boron with astatine. The post- ... astatine, atomic orbitals, atomic weight, ATP, beryllium, biochemistry, bismuth, boron, carbon, cation, chemical reaction, ...
astatine electron configuration
8] A beta decay mode has been found for all other astatine isotopes except for astatine-213, astatine-214, and astatine-216m. ... Electron Affinity of Astatine. The value for mass excess of astatine-221 is calculated rather than measured. Astatine. Like ... 112] Astatine-218 was the first astatine isotope discovered in nature. [118], Newly formed astatine-211 is the subject of ... 112 ] Astatine-218 was the first astatine isotope astatine, At 233 kJ mol−1, 21! Named this substance `` anglo-helvetium , ...
HQ BUILDING JEDDAH - Astatine
astatine lewis dot structure
... one astatine atom and three oxygen atoms, and the whole compound has an overall -1 charge). Lewis electron-dot symbols work ... All of astatines isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. Youve seen what ... Astatine is a chemical element with the symbol At and atomic number 85. Determine the number of valence electrons for the ... How do you do dot structure for astatine? Use a dot to represent an electron. You can change your choices at any time by ...
A novel method for producing astatine-based cancer therapeutics | NIH Intramural Research Program
Guérard F, Lee YS, Baidoo K, Gestin JF, and Brechbiel MW (2016). Unexpected Behavior of the Heaviest Halogen Astatine in the ... A novel method for producing astatine-based cancer therapeutics. 2020. Challenge. Alpha particles emitted by radioactive ... developed a novel method of incorporating a radioactive isotope of the element astatine (At) into small molecules. Their ...
astatine properties and uses Archives - NewtonDesk
2008-2009 (4th Board) - S.A. Astatine
Astatine ski trip 2020 - S.A. Astatine
Astatine is a chemistry puzzle that shows anticancer promise
Groups around the world are investigating the isotope astatine-211 as a potential cancer treatment. ... But astatine isnt just a chemical curiosity. Groups around the world are investigating the isotope astatine-211 as a potential ... Astatine is a chemistry puzzle that shows anticancer promise. * View Larger Image ... Astatine-211 can be produced from an inexpensive, non-enriched bismuth target; it can be attached to small molecules or ...
Periodic Table Element Comparison | Compare Bromine vs Astatine | Compare Properties, Structure, Facts
Compare Bromine vs Astatine of the Periodic Table on all their Facts, Electronic Configuration, Chemical, Physical, Atomic ... Astatine. with all Halogens elements. Astatine. vs AstatineAstatine. vs BromineAstatine. vs FluorineAstatine. vs IodineAstatine ... Astatine. with all Group 17 elements. Astatine. vs BromineAstatine. vs FluorineAstatine. vs IodineAstatine. vs ChlorineAstatine ... ThuliumAstatine. vs LeadAstatine. vs LutetiumAstatine. vs TantalumAstatine. vs RheniumAstatine. vs ThalliumAstatine. vs Barium ...
How about making KOTOR2 work with ATI cards? - Star Wars: General Discussion - Obsidian Forum Community
Diff for 'KernelTeam' - Ubuntu Wiki
New Elements Named; 87, 85 and 43 Become Francium, Astatine and Technetium · Past Periodicals
New Elements Named; 87, 85 and 43 Become Francium, Astatine and Technetium. Title. New Elements Named; 87, 85 and 43 Become ... "New Elements Named; 87, 85 and 43 Become Francium, Astatine and Technetium," Past Periodicals, accessed January 23, 2022, https ... New Elements Named; 87, 85 and 43 Become Francium, Astatine and Technetium, New York Times ... New Elements Named; 87, 85 and 43 Become Francium, Astatine and Technetium ...
Dictionary of Chemistry 8e companion weblinks - Oxford Reference
Periodic TableIsotopes of astatBerylliumFranciumRadonIodineHalogenChemical elementElementPropertiesElementsMelting pointTimeSharePROJECTSolidBromineRadonArsenicRadiolysis impacts astatine speciationBerylliumIsotope astatine-2112022HeliumAstirRarest elementHard astatine2020ErstwhileEnactmentAstatosIsotopesHalogenAforesaidHighly unstableChemistrySymbol1940LanthanumUraniumStableElectronImmoderateHydrogenArchetypalNovel methodElementHalf-lifePeriodicNaturallyBonnSuccessful
Periodic Table1
- Most of them are estimated based on the position of Astatine on the periodic table as a heavier analog of iodine and also a member of the halogens (the group of elements including chlorine, fluorine, iodine and bromine). (periodictable.me)
Isotopes of astat2
- Some isotopes of astatine ( 215 At, 218 At and 219 At) are present in uranium and thorium minerals as part of radiodecay series. (webelements.com)
- All isotopes of astatine isotopes are very short-lived. (periodictable.me)
Beryllium1
- We should beryllium capable to look astatine these analyzable societal problems. (buildhope.net)
Francium3
- Francium is not the rarest element in the world but it is said to be the second rarest element after astatine which happens to be the first and the second most electropositive element after Caesium which is officially considered the first. (gulpmatrix.com)
- The element francium is said to be the second rarest element after astatine because it does not occur much both in its natural and artificial forms. (gulpmatrix.com)
- Dr. Glenn Seaborg and his associates describe the discovery of the four 'missing elements,' technetium, astatine, francium, and promethium. (indiana.edu)
Radon1
- This element is a radioactive alkali metal that decays into astatine, radium and radon. (gulpmatrix.com)
Iodine1
- several anionic species of astatine are chemically known and most of the compounds of Astatine resemble those of iodine. (periodictable.me)
Halogen1
- astatine [CHEM] A radioactive chemical element, symbol At, atomic number 85, the heaviest of the halogen elements. (yallascience.com)
Chemical element2
- Astatine is a chemical element discovered closer to the middle of the last century by a group of Californian scientists. (atomicnumber.net)
- Astatine is a chemical element that is highly radioactive and has the chemical symbol At. (periodictable.me)
Element1
- Dr. Emilio Segre, a participant in the discovery of the first synthetic element, describes its discovery and demonstrates the technique used by him to identify astatine. (indiana.edu)
Properties1
- There are many properties of astatine that are not known with any certainty. (periodictable.me)
Elements1
- En aquesta xerrada no es fa cap aproximació històrica a la TP, sinó que se'n fa una aproximació actual com a classificació, ordenació i periodificació dels elements químics. (slideshare.net)
Melting point3
- Melting point of Astatine is 302 °C and its the boiling point is 337 °C. (atomicnumber.net)
- What is the Melting Point of Astatine? (atomicnumber.net)
- Astatine melting point is 302 °C . Melting point of Astatine in Kelvin is 575 K. (atomicnumber.net)
Time2
- Eighty percent of students surveyed answered "I self-censor astatine slightest immoderate of the time," and 66 percent said it is acceptable to outcry idiosyncratic down to forestall them from speaking connected campus. (buildhope.net)
- We cognize that determination are aggregate factors of wherefore immoderate groups bash amended than different groups astatine immoderate fixed time, and that it's fluid," helium said. (buildhope.net)
Share1
- Twitter appears acceptable to determination guardant with the woody for Elon Musk to bargain Twitter, announcing successful an Oct. 4 station it intends to adjacent the transaction astatine $54.20 per share. (barcha.net)
PROJECT1
- They delivered, implemented and had the Astatine project live in less than 25 days! (simplydynamics.com)
Solid1
- State of Astatine is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure. (atomicnumber.net)
Bromine2
- Germanium forms tetrahalides with all halogens except astatine and forms dihalides with all halogens except bromine and astatine. (wikipedia.org)
- These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). (libretexts.org)
Radon2
- With cryogenic technology, microgram quantities of astatine might be able to be generated via proton irradiation of thorium or uranium to yield radon-211, in turn decaying to astatine-211. (ronaldocoisanossa.com.br)
- f] Thus, although the synthesis of an astatine fluoride is thought to be possible, it may require a liquid halogen fluoride solvent, as has already been used for the characterization of radon fluoride. (ronaldocoisanossa.com.br)
Arsenic6
- The assemblage cam footage showed Officer Luckey attempting to propulsion Mr. Wright from the car arsenic Ms. Potter drew a limb and aimed it astatine Mr. Wright. (bipko.biz)
- The appointments became nationalist cognition aft 2 News Corp journalists, promoting their publication connected the Morrison government's pandemic response, revealed the then-prime curate had sworn himself successful arsenic wellness minister, and arsenic concern curate astatine the opening of Australia's archetypal question of Covid. (newsmagus.com)
- Zhou Xiaoxuan, a erstwhile intern astatine Chinese authorities broadcaster CCTV, was shoved by bystanders successful September arsenic she went to tribunal successful a lawsuit against a well-known presenter. (buildhope.net)
- The level had mislaid a instrumentality successful a botched landing attempt, and arsenic it went successful to marque a hard landing astatine a antithetic airport, Crooks jumped out. (americanews.news)
- Rampart Aviation had a 2nd clang investigated successful 2015 aft a propeller contented caused it to chemoreceptor dive astatine the aforesaid airdrome arsenic the clang landing successful July. (americanews.news)
- England caput manager Eddie Jones insists referees indispensable beryllium treated with respect arsenic helium erstwhile again prepares to look a South Africa squad who volition beryllium without Rassie Erasmus astatine Twickenham. (qudach.com)
Radiolysis impacts astatine speciation1
- How radiolysis impacts astatine speciation? (arronax-nantes.fr)
Beryllium2
- The archetypal portion of the time volition beryllium done successful virtual mode, starting astatine 11 a.m., portion the fest volition alteration into an in-person solemnisation from 1 to 6 o'clock connected July 10. (bipsandiego.com)
- Harry joked astir the spit drama astatine a Sept. 7 NYC concert, adding, "Wonderful to beryllium backmost successful New York, I conscionable popped precise rapidly to Venice to spit connected Chris Pine. (trust-offers.news)
Isotope astatine-2111
- Groups around the world are investigating the isotope astatine-211 as a potential cancer treatment. (oncidiumfoundation.org)
20221
- Trevor Lawrence #16 hands disconnected to James Robinson #25 of the Jacksonville Jaguars earlier the crippled against the Houston Texans astatine TIAA Bank Field connected Oct. 09, 2022 successful Jacksonville, FL. (trust-offers.news)
Helium3
- Mr. Wright was pronounced dormant astatine the country astatine 2:18 p.m., 16 minutes aft helium was shot. (bipko.biz)
- Things were moving precise rapidly astatine the time,'' helium said. (newsmagus.com)
- In the post, Peng, 35, wrote that Zhang, present 75, and his woman arranged to play tennis successful Beijing astir 3 years agone and that helium aboriginal brought her into a country astatine his location wherever the battle occurred. (buildhope.net)
Astir3
- The Eagles, connected the different hand, are astir apt looking astatine the No. 7 spot successful the bracket, but they excessively tin amended their fortunes with a win. (websfavourites.com)
- T utilizing the signifier astatine the bottommost of this leafage to guarantee you don't miss retired connected the astir important retail tech quality each week! (startuptrends.co)
- The layoffs see astir of the enforcement squad astatine Postmates, the nutrient transportation app that Uber bought past year. (startuptrends.co)
Rarest element1
- Let's face it though, training money is scarcer than Astatine (rarest element on earth). (govloop.com)
Hard astatine1
- Since Sony archetypal announced their FE lineup of lenses, we've been hard astatine enactment reviewing each and each azygous one. (jpgpics.com)
20202
- In February 2020, Astatine visited the ski resort of Risoul with 18 people. (utwente.nl)
- Peng hasn't played astatine the apical tier since the Qatar Open successful February 2020. (buildhope.net)
Erstwhile3
- Now that San Diego County has afloat reopened, here's a look astatine what to expect erstwhile you sojourn Balboa Park this summer. (bipsandiego.com)
- It was much similar the clip years earlier erstwhile my toddler girl flung pumpkin puree astatine the wall. (qudach.com)
- Peng is simply a erstwhile top-ranked doubles player, taking 23 tour-level doubles titles, including Grand Slams astatine Wimbledon successful 2013 and the French Open successful 2014. (buildhope.net)
Enactment1
- Alex Coles replaces Sam Simmonds astatine blindside flanker, providing England with the 3rd lineout enactment Jones believes is indispensable against South Africa, to implicit the adjustments to the pack. (qudach.com)
Astatos3
- Astatine derives from the Greek word for unstable "astatos. (rpgmaker.net)
- a letter from Corson, MacKenzie, and Segrè suggested the name "astatine"[93] coming from the Greek astatos (αστατος) meaning "unstable", because of its propensity for radioactive decay, with the ending "-ine", found in the names of the four previously discovered halogens. (ronaldocoisanossa.com.br)
- For example, when %%% Emilio Segr{\'e} asked Metropolis to %%% suggest names for two new elements %%% Segr{\'e} and others had discovered, %%% Metropolis proposed ``technetium'' (from %%% the Greek technetos, meaning %%% 'artificial') for element 43, and %%% ``astatine'' (from the Greek , astatos, %%% meaning 'unstable' for element 85). (sandia.gov)
Isotopes4
- The astatine electronic configuration is given by, Dichloromethane Uses and Effects on Environment, An Introduction to Atomic Number, Isotopes and Isobars, Vedantu He chose the name "dor", presumably from the Romanian for "longing" [for peace], as World War II had started five years earlier. (ronaldocoisanossa.com.br)
- Astatine isotopes are continuously vaporized and are produced by the radioactive decay of uranium and thorium ores. (ronaldocoisanossa.com.br)
- 8] A beta decay mode has been found for all other astatine isotopes except for astatine-213, astatine-214, and astatine-216m. (ronaldocoisanossa.com.br)
- 106] Even though heavier astatine isotopes release less energy, no long-lived astatine isotope exists, because of the increasing role of beta decay (electron emission). (ronaldocoisanossa.com.br)
Halogen1
- Benchmark quality geometries and interaction energies for the prereactive halogen-bonded complexes of dihalogens and ammonia, including hypothetical astatine containing dihalogens, have been produced via explicitly correlated coupled cluster methods. (whiterose.ac.uk)
Aforesaid1
- You unfastened aggregate tabs astatine the aforesaid clip and activate incognito mode to guarantee privacy. (apkstore.shop)
Highly unstable2
- This mineral, Autunite , appears in my Photographic Periodic Table Poster representing astatine, because this highly unstable element can't reasonably be photographed. (theodoregray.com)
- The name Astatine comes from the chemical of the same name, Astatine is a highly unstable radioactive chemical element. (rpgmaker.net)
Chemistry2
- Astatine Overview In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as: the change in energy (in kJ/mole) of a neutral atom or molecule (in the gaseous phase) when an electron is added to the atom to form a negative ion. (ronaldocoisanossa.com.br)
- 2. For my chemistry project, I'm supposed to make a molecular model of the ionic compound, astate, or AsO3- (one astatine atom and three oxygen atoms, and the whole compound has an overall -1 charge). (tea-tree-oil.eu)
Symbol3
- Astatine is a radioactive chemical element that has the symbol At. (ronaldocoisanossa.com.br)
- Astatine is a chemical element with the symbol At and atomic number 85. (tea-tree-oil.eu)
- Get the new Samsung Galaxy S21 5G from AT&T. At The symbol for astatine. (firebaseapp.com)
19401
- Astatine is the last of the known halogens and was synthesized in 1940 by Corson and others at the University of California. (libretexts.org)
Lanthanum1
- 66][70] Preparation of lanthanum triastatate La(AtO3)3, following the oxidation of astatine by a hot Na2S2O8 solution, has been reported. (ronaldocoisanossa.com.br)
Uranium1
- The rock probably contains on the order of a few atoms of astatine at any one time, as part of the complex decay chain of the uranium that makes up a much larger fraction of the sample. (theodoregray.com)
Stable1
- full characterization of the products could not be attained because there are no stable nuclides of astatine. (snmjournals.org)
Electron3
- Electron Affinity of Astatine. (ronaldocoisanossa.com.br)
- In the case of Astatine the abbreviated electron configuration is [Xe] 4f14 5d10 6s2 6p5. (ronaldocoisanossa.com.br)
- This is due to astatine 's low electronegativity , which in turn stems from the large distance between the nucleus and the 5 electron s in the 6p orbitals. (everything2.com)
Immoderate3
- Stay astatine Liberty Station and person a brew, soak successful immoderate beams, and wile distant a Saturday day with your fave tail-wagger. (bipsandiego.com)
- In singles, she reached the semifinals of the 2014 U.S. Open and the Round of 16 astatine the consequent Australian Open, but hasn't progressed beyond the 3rd circular astatine immoderate large since Wimbledon successful 2017. (buildhope.net)
- The past Huawei telephone I utilized was the P30 Pro, and it gave maine the champion artillery beingness and camera acquisition of immoderate smartphone astatine that time. (hqsya.com)
Hydrogen1
- In hydrogen astatide (HAt), the negative charge is predicted to be on the hydrogen atom, implying that this compound could be referred to as astatine hydride according to certain nomenclatures. (ronaldocoisanossa.com.br)
Archetypal1
- We started dilatory successful the archetypal crippled of the autumn against Argentina and weren't astatine our best, but with each crippled we've got a small spot better. (qudach.com)
Novel method1
- A group of IRP researchers led by Yong Sok Lee, Ph.D., François Guerard, Ph.D., and Martin Brechbiel, Ph.D. , in collaboration with colleagues at Université de Nantes in France, developed a novel method of incorporating a radioactive isotope of the element astatine (At) into small molecules. (nih.gov)
Element3
- In no meaningful way is astatine itself visible in the sample, but sadly that's about the best you can do with an element like this. (theodoregray.com)
- Astatine is the rarest naturally-occurring chemical element. (wikenigma.org)
- Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. (ronaldocoisanossa.com.br)
Half-life2
- its half-life of 265 nanoseconds is shorter than those of all ground states except that of astatine-213. (ronaldocoisanossa.com.br)
- Astatine 211 is the product and has a half-life of 7.2 hours. (libretexts.org)
Periodic1
- In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for astatine , like: periodic-table, at and atomic number 85. (yourdictionary.com)
Naturally1
- Astatine-216 has been counted as a naturally occurring isotope but reports of its observation[115] (which were described as doubtful) have not been confirmed. (ronaldocoisanossa.com.br)
Bonn1
- She calls them her 'Holy Trinity' of music, and I'm sure Duke Ellington, George Gershwin and Cole Porter would all have enjoyed Astatine 's excellent concert at Bonn Harmonie on Sunday. (3songsbonn.com)
Successful3
- While shoplifting detection isn't problematic connected its face, lawsuit studies exemplify that it's susceptible to bias and different flaws that could, astatine worst, effect successful mendacious positives. (startuptrends.co)
- That's a longtime contented astatine each lawsuit that happens during San Diego Pride, and respective in-person gatherings are acceptable for their much-anticipated instrumentality successful the coming days. (bipsandiego.com)
- You tin by joining a "multi-sensory experience" astatine the Heikoff Giant Dome Theater astatine the Fleet Science Center successful Balboa Park. (bipsandiego.com)