What mass of 14C (having a half-life of 5730 years) do you need to provide a decay rate of 280.0 Bq? (1 u = 1.6605 × 10-27 kg)
A) 1.70 × 10-12 kg
B) 5.38 × 10-19 kg
C) 3.84 × 10-20 kg
D) 8.68 × 10-13 kg
Answer: A
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Fill in the blank(s) with correct word
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