The reason corresponding to the given statement that 213 Bi undergo β -decay but 111 In decays by electron capture is to be stated. Concept introduction: The nuclides which are rich in neutron undergo beta decay. In beta decay, a proton and a high speed, high energy electron (beta particle) is produced when a neutron disintegrates. The proton produced during this process remains in the nucleus and high energy electron as beta particles is ejected out from the atom. The nuclides which are rich in protons decay by electron capture. In electron capture, there is a decrease in the number of protons by one and increase in the number of neutrons by one. To determine: The reason corresponding to the given statement that 213 Bi undergo β -decay but 111 In decays by electron capture.

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Chapter 21, Problem 21.73QP

Interpretation Introduction

Interpretation: The reason corresponding to the given statement that 213Bi undergo β -decay but 111In decays by electron capture is to be stated.

Concept introduction: The nuclides which are rich in neutron undergo beta decay. In beta decay, a proton and a high speed, high energy electron (beta particle) is produced when a neutron disintegrates.

The proton produced during this process remains in the nucleus and high energy electron as beta particles is ejected out from the atom.

The nuclides which are rich in protons decay by electron capture. In electron capture, there is a decrease in the number of protons by one and increase in the number of neutrons by one.

To determine: The reason corresponding to the given statement that 213Bi undergo β -decay but 111In decays by electron capture.

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