Chemistry 101?

0 ⤊

You have a sample of bone collected from Nevada and you find that it contains strontium-90 and exhibits an activity of 2.5 Bq. How much strontium-90 was present in the bone when the animal died 45 years ago. The half-life of 90Sr is 29 years.

A 1.1 x 108
B 9.7 x 108
C 3.3 x 108
D 1.5 x 10

2007-05-02 14:45:32 · 1 answers · asked by Virginia M 1 in Science & Mathematics ➔ Chemistry

1 answers

B 9.7 x 108

2007-05-02 20:52:22 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋