Half-life of polonium-209 is 102 years. How many alpha particle are emitted in 1 second from 2 mg sample of polonium? Half-life of polonium-209 is 102 years. How many alpha particle are emitted in 1 second from 2 mg sample of polonium?
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| Half-life of polonium-209 is 102 years. How many alpha particle are emitted in 1 |
| second from 2 mg sample of polonium? |
Half-life of polonium-209 is 102 years. How many alpha particle are emitted in 1 second from 2 mg sample of polonium?
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- The half-life of a radioactive isotope is 6.02 hours. 25.0 Grams of this isotope is needed for an experiment. How many grams of the isotope must be ordered if 48 hours pass between the time the isotope is ordered and the start of the experiment?Strontium-90 is one of the radioisotopes released in the Chernobyl nuclear plant accident. The half-life of strontium-90 is 28.1 years. If you begin with 67.3 milligrams of strontium-90, how many milligrams will you have left after 84.3 years have passed? mgA 500 g of radioactive sample has a half life of 2.5 years. How much of the initial sample will be left after 1.4 years.