• radioactivity
  • Due to its intense radioactivity, which results in the radiolysis of chemical bonds and radioactive self-heating, its chemistry has mostly been investigated on the trace scale only. (wikipedia.org)
  • She was a pioneer in the field of radioactivity , the only person honored with Nobel Prizes in two different sciences, and the first female professor at the University of Paris . (blogspot.com)
  • In early work, Rutherford discovered the concept of radioactive half-life, proved that radioactivity involved the nuclear transmutation of one chemical element to another, and also differentiated and named alpha and beta radiation. (wikipedia.org)
  • They then attempted to separate these radioactive fractions further, to isolate a smaller fraction with a higher specific activity (radioactivity divided by mass). (wikipedia.org)
  • Ernest Rutherford, working in Canada and England, showed that radioactive decay can be described by a simple equation (a linear first degree derivative equation, now called first order kinetics), implying that a given radioactive substance has a characteristic "half-life" (the time taken for the amount of radioactivity present in a source to diminish by half). (wikipedia.org)
  • higher radon
  • If your home does contain higher radon levels than what is considered safe for human exposure, eliminating it could potentially save your life. (radonsystem.com)
  • In that study, the authors measured actual exposure and outcomes of about 57,000 Danes and found the "adjusted [risk] for lung cancer was 1.04 (95% CI: 0.69-1.56) in association with a 100 Bq/m^3 higher radon concentration and 1.67 (95% CI: 0.69-4.04) among non-smokers. (wmbriggs.com)
  • The finding of no effect was contrary to expectations, so the authors said, "In the present study, a number of risk factors for lung cancer were less prevalent among participants living at the higher radon concentrations, including…low fruit intake, risk occupation and traffic-related air pollution. (wmbriggs.com)
  • radiation
  • OBJECTIVE: Build a simple ionization chamber that is capable of detecting fairly low levels of radiation BACKGROUND OF THE STUDY Radon is a cancer-causing gas. (studymode.com)
  • In this age of nuclear reactors, radon a natural occurring element is responsible for the majority of public exposure to ionizing radiation. (guardianlv.com)
  • Radon is the single largest contribution to an individual's radiation exposure and this can vary from different locations and countries. (guardianlv.com)
  • A radioactive element is one that gives off radiation and breaks down to form a different element. (encyclopedia.com)
  • National Council on Radiation Protection and Measurements, Evaluation of Occupational and Environmental Exposures to Radon and Radon Daughters in the United States, NCRP Report No. 78, Bethesda, MD (1984). (springer.com)
  • unstable
  • The radioactive oganesson atom is very unstable, and since 2005, only five (possibly six) atoms of the nuclide 294Og have been detected. (wikipedia.org)
  • heavier
  • It was 80 years from Bohr's prediction before oganesson was successfully synthesised, although its chemical properties have not been investigated to determine if it behaves as the heavier congener of radon. (wikipedia.org)
  • Prizes
  • The only person to win two Nobel Prizes in different science fields. (blogspot.com)
  • Under him, Nobel Prizes were awarded to James Chadwick for discovering the neutron (in 1932), John Cockcroft and Ernest Walton for an experiment which was to be known as splitting the atom using a particle accelerator, and Edward Appleton for demonstrating the existence of the ionosphere. (wikipedia.org)
  • Substances
  • In addition to radioactive materials, many other non-radiological toxic substances were present in the production area as materials, by-products or products. (wikipedia.org)
  • particles
  • Many of these kits use charcoal or foam to collect radioactive particles that may be floating in the air. (radonsystem.com)
  • The entrance of radon particles through gaps in the plumbing system and cracks in the ground is a huge concern. (nicholasregush.com)
  • In this technique air at a very high pressure is aimed at the poisoned water body and is thoroughly mixed which makes the radon particles settle down leaving the water clean again. (nicholasregush.com)
  • It filters the radon particles from the water body before use. (nicholasregush.com)
  • accumulate
  • Studies have concluded that radon gas can accumulate to a higher concentration in low areas, such as basements and crawl spaces and is now found in some spring water and hot springs. (guardianlv.com)
  • contamination
  • Poorly ventilated rooms, of course, fill with radon gas the most quickly, but any building can be vulnerable to radon contamination. (radonsystem.com)
  • Fernald came under criticism in 1984 when it was learned that the plant was releasing millions of pounds of uranium dust into the atmosphere, causing major radioactive contamination of the surrounding areas. (wikipedia.org)
  • Environmental
  • S.W.A.T Environmental - America's #1 Radon Reduction Company Since 1988. (radonsystem.com)
  • Radon is a national environmental health problem. (guardianlv.com)
  • Radon is one of the most serious environmental health risks that we face," said Univeristy of Minnesota professor Bill Angell. (wmbriggs.com)
  • The U.S. Environmental Protection Agency (EPA) regards the presence of radon in homes and offices as a serious health problem. (encyclopedia.com)
  • Neon (Ne) is one of the noble gases and is very nonreactive under normal environmental conditions. (blogspot.com)