   Chapter 25, Problem 30PS

Chapter
Section
Textbook Problem

Predict the probable mode of decay for each of the following radioactive isotopes, and write an equation to show the products of decay. (a) manganese-54 (b) americium-241 (c) silver-110 (d) mercury-197m

(a)

Interpretation Introduction

Interpretation: Probable mode of decay of manganese-54 and the equation for this radioactive decay has to be given

Concept introduction:

Radioactive decay: It is the process in which a radioactive nucleus loses its energy by the emission of radiations namely, beta particle, alpha particle

Common particles in radioactive decay and nuclear transformations are mentioned below,

ParticleSymbolProton11Hor11PNeutron01nElectron-10eAlphaparticle24Heor24αBetaparticle-10eor-10βPositron10e

There are various types of nuclear processes. The changes in atomic number and mass number accompanying radioactive decay are mentioned below,

TypeofDecaySymbolchargeMassChangeinatomicnumberChangeinmassnumberBeta-10eor-10β-10+1nonePositron+10e+10-1noneAlpha24Heor24α+24-2-4Gamma00γ00nonenone

Explanation

The radioactive isotope of manganese-54 is transmuted to iron-56 along with the emission of a proton.

The equation for this radioactive decay is given below:

M2554n+

(b)

Interpretation Introduction

Interpretation: Probable mode of decay of silver-110 and the equation for this radioactive decay has to be given

Concept introduction:

Radioactive decay: It is the process in which a radioactive nucleus loses its energy by the emission of radiations namely, beta particle, alpha particle

Common particles in radioactive decay and nuclear transformations are mentioned below,

ParticleSymbolProton11Hor11PNeutron01nElectron-10eAlphaparticle24Heor24αBetaparticle-10eor-10βPositron10e

There are various types of nuclear processes. The changes in atomic number and mass number accompanying radioactive decay are mentioned below,

TypeofDecaySymbolchargeMassChangeinatomicnumberChangeinmassnumberBeta-10eor-10β-10+1nonePositron+10e+10-1noneAlpha24Heor24α+24-2-4Gamma00γ00nonenone

(c)

Interpretation Introduction

Interpretation: Probable mode of decay of americium-241 and the equation for this radioactive decay has to be given

Concept introduction:

Radioactive decay: It is the process in which a radioactive nucleus loses its energy by the emission of radiations namely, beta particle, alpha particle

Common particles in radioactive decay and nuclear transformations are mentioned below,

ParticleSymbolProton11Hor11PNeutron01nElectron-10eAlphaparticle24Heor24αBetaparticle-10eor-10βPositron10e

There are various types of nuclear processes. The changes in atomic number and mass number accompanying radioactive decay are mentioned below,

TypeofDecaySymbolchargeMassChangeinatomicnumberChangeinmassnumberBeta-10eor-10β-10+1nonePositron+10e+10-1noneAlpha24Heor24α+24-2-4Gamma00γ00nonenone

(d)

Interpretation Introduction

Interpretation: Probable mode of decay of mercury-197m and the equation for this radioactive decay has to be given

Concept introduction:

Radioactive decay: It is the process in which a radioactive nucleus loses its energy by the emission of radiations namely, beta particle, alpha particle

Common particles in radioactive decay and nuclear transformations are mentioned below,

ParticleSymbolProton11Hor11PNeutron01nElectron-10eAlphaparticle24Heor24αBetaparticle-10eor-10βPositron10e

There are various types of nuclear processes. The changes in atomic number and mass number accompanying radioactive decay are mentioned below,

TypeofDecaySymbolchargeMassChangeinatomicnumberChangeinmassnumberBeta-10eor-10β-10+1nonePositron+10e+10-1noneAlpha24Heor24α+24-2-4Gamma00γ00nonenone

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