Question

The specific activity of a sample of sodium containing only Na^(23) and Na^(24) is 1.25×10^(15) disintegration per second per gm.The mass percent of Na^(24) in the sample is Given In 2=0.7 N_(A)=6×10^(23) t(1/2) of Na^(24)=14 hrs.​

Answer 1

Explanation:

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