If We Start with 1

Question 82

Multiple Choice

If we start with 1.000 g of strontium-90, 0.908 g will remain after 4.00 yr. This means that the half-life of strontium-90 is __________ yr.

A) 3.05
B) 4.40
C) 28.8
D) 3.63
E) 41.6

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