Answer to Question #107499 in Atomic and Nuclear Physics for Daisy Carr

Question #107499
3. The half-life of radium-226 is 1600 years. If a sample of radium-226 has an original activity of 200 Bq, what will it’s activity be after 4800 years?
1
Expert's answer
2020-04-02T11:03:41-0400

The activity

"A=A_0 2^{-t\/T_{1\/2}}=200\\times 2^{-4800\/1600}=25\\:\\rm Bq."

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