Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 33 grams, how much will remain after 69 years?
?

A. 0 grams
B. 29.1351 grams
C. 10.9074 grams
D. 8.2500 grams
E. 0.6973 grams


Answer: E

Mathematics

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