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gasparesparzajr
27.11.2019 •
Chemistry
Suppose you have 50 grams of a radioactive isotope with a half-life of 2 years. how much of the isotope will you have after 4 years?
a) 50
b) 25
c) 12.5
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Ответ:
So, if you have 50 grams of a radioactive isotope with a half-life of 2 years, after 2 years it will have 25 grams. But since we are looking for after 4 years, then you divide it by 4. The correct answer is that it will have C. 12.5 grams of isotope after 4 years.
Ответ:
answer:
2
explanation:
1+1 is 2