The half-life of 235U, an alpha emitter, is 7.1×108 yr. Part A Calculate the number of...

Question

Question

The half-life of 235U, an alpha emitter, is 7.1×108 yr.

Part A

Calculate the number of alpha particles emitted by 3.4 mg of this nuclide in 3 minutes.

Express your answer using two significant figures.

TIME GIVEN IS 3 MINUTES

Answer 1

Answer #1

235 3m CKt) 0 min dt 此

Answer 2

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