Multiple Choice
A freshly prepared sample of curium-243 undergoes 3312 disintegrations per second. After 6.00 yr, the activity of the sample declines to 2755 disintegrations per second. The half-life of curium-243 is __________ yr.
A) 4.99
B) 32.6
C) 7.21
D) 0.765
E) 22.6
Correct Answer:
Verified
Correct Answer:
Verified
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