Mathematics, 06.02.2021 01:00 eggoysters
The half–life of rubidium–89 is 15 minutes. If the initial mass of the isotope is 250 grams, how many grams will be left after 100 minutes?
A.
2.46 grams
B.
0.0098 grams
C.
0.90 grams
D.
225.31 grams
Answers: 3
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The half–life of rubidium–89 is 15 minutes. If the initial mass of the isotope is 250 grams, how man...
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