A piece of radioactive material contains 1020 atoms. If the half life of the material is 20 seconds, the number of disintegration in the first second is

Question 1 Report

A piece of radioactive material contains 1020 atoms.

If the half life of the material is 20 seconds, the number of disintegration in the first second is

3.47 x 1018

6.93 x 10 20

3.47 x 1020

6.93 x 1018

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