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Question 14: Explain why neutron activated nuclides tend to decay by β rather than β+.

ANSWER

The emission of neutron is due to the fact that the in such reactions a neutron converts to proton and emits an electron. The reaction is as follow.

0n1     ——–    1P1 + βparticle        OR

0n1    ——-      1P1 + e

This shows the formation of β – particle when the neutron converts to proton. In such reactions the charge number of nucleus increases by one unit and no change occurs in the mass number of the nucleus.

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