Multiple Choice
If we start with 1.000 g of strontium-90, 0.8444 g will remain after 7.00 y. This means that the of strontium-90 is ________ y.
A) 5.91
B) 8.29
C) 23.7
D) 4.10
E) 28.7
Correct Answer:

Verified
Correct Answer:
Verified
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