Question

A sealed container holds 1600 radioactive nuclei of type A. Nuclei of type A decays to...

A sealed container holds 1600 radioactive nuclei of type A. Nuclei of type A decays to a stable daughter nuclei of type B. After N half-lives, there are 1400 nuclei of type B in the container. What is the value of N?

3

0.19

5

0.62

4

Homework Answers

Answer #1

Let the number of nuclei of type A be No=1600

And the the number of nuclei of type B after decay be N=1400

Let the n be the number of half life after type A nuclei decays to satble type B nuclei

Relation between number of nuclei and half lifes is given by

Taking natural log on both side.

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