(1) They also debated earnestly over how polluted and radioactive they thought the Caspian's waters were.

(2) He explained spent nuclear fuel is not radioactive waste because it can be reused.

(3) If a nucleus has too many protons for its number of neutrons, it will be radioactive .

(4) This three-year project was to lead to the discovery of the causes of radioactive emissions.

(5) When a fuel rod is spent and removed from the reactor, it is hot and highly radioactive .

(6) On average, how much time will pass before a radioactive atom decays?

(7) It relies on an analysis of how much of a radioactive isotope has decayed into its daughter isotope.

(8) Operated by the Royal Observer Corps, it was also charged with monitoring lethal radioactive fallout.

(9) Carbon - 14 is radioactive and it is this radioactivity which is used to measure age.

(10) They realized that the particles emitted by radioactive elements as they decay are in fact little bits of the atomic nuclei.

(11) The periodic table has since been expanded to 81 stable and 31 radioactive elements.

(12) Nuclear fusion produces no greenhouse gas emissions and only low levels of radioactive waste.

(13) Part of the problem is that as the radioactive substance decays, most of the electrons miss the silicon surface.

(14) Radioactive waste

(15) The specific activity of the radioactive thiamine was the same for each concentration used.

(16) It is so hot and radioactive that the miners use remote control equipment.

(17) In reality all they did was make my blood radioactive before taking gamma photographs.

(18) Depleted uranium is a radioactive heavy metal, which is also chemically toxic.

(19) The C-urea breath test detects current infection and is not radioactive .

(20) They fill up the thyroid gland and stop it from absorbing any radioactive iodine released by the reactor.

(21) Radon decays to form tiny radioactive particles, some of which remain suspended in the air.

(22) U2018There is likely to be an increase in radioactively contaminated metals and other radioactive sources entering the scrap supply chain,u2019 he said.

(23) It is unstable, and scientists know that it radioactively decays by electron emission to Nitrogen 14, with a half life of 5730 years.

(24) Specimens of fish and amphibians taken from radioactively contaminated or otherwise polluted areas also show some apparent fluctuations in DNA content.

(25) Those four iron isotopes are all radioactively stable.

(26) Uranium decays radioactively to produce thorium - 230 at a known rate.