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Emitting or relating to the emission of ionizing radiation or particles:‘radioactive decay’‘the water was radioactive’
- ‘He explained spent nuclear fuel is not radioactive waste because it can be reused.’
- ‘It relies on an analysis of how much of a radioactive isotope has decayed into its daughter isotope.’
- ‘When a fuel rod is spent and removed from the reactor, it is hot and highly radioactive.’
- ‘The C-urea breath test detects current infection and is not radioactive.’
- ‘The periodic table has since been expanded to 81 stable and 31 radioactive elements.’
- ‘They also debated earnestly over how polluted and radioactive they thought the Caspian's waters were.’
- ‘Carbon - 14 is radioactive and it is this radioactivity which is used to measure age.’
- ‘If a nucleus has too many protons for its number of neutrons, it will be radioactive.’
- ‘They realized that the particles emitted by radioactive elements as they decay are in fact little bits of the atomic nuclei.’
- ‘Radon decays to form tiny radioactive particles, some of which remain suspended in the air.’
- ‘On average, how much time will pass before a radioactive atom decays?’
- ‘This three-year project was to lead to the discovery of the causes of radioactive emissions.’
- ‘The specific activity of the radioactive thiamine was the same for each concentration used.’
- ‘It is so hot and radioactive that the miners use remote control equipment.’
- ‘They fill up the thyroid gland and stop it from absorbing any radioactive iodine released by the reactor.’
- ‘Nuclear fusion produces no greenhouse gas emissions and only low levels of radioactive waste.’
- ‘In reality all they did was make my blood radioactive before taking gamma photographs.’
- ‘Part of the problem is that as the radioactive substance decays, most of the electrons miss the silicon surface.’
- ‘Depleted uranium is a radioactive heavy metal, which is also chemically toxic.’
- ‘Operated by the Royal Observer Corps, it was also charged with monitoring lethal radioactive fallout.’
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