General Chemistry
General Chemistry
7th Edition
ISBN: 9780073402758
Author: Chang, Raymond/ Goldsby
Publisher: McGraw-Hill College
Question
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Chapter 21, Problem 21.77QP

(a)

Interpretation Introduction

Interpretation:

The type of decay and the isotope which undergoes that particular decay should be identified.

Concept Introduction:

Nuclear reaction is a physical process in which there is a change in identity of an atomic nucleus. Natural radioactive decays, artificial radioactive decays... are considered as nuclear reactions because these processes make changes in the identity of an atomic nucleus.

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

An isotope can be represented using ZAX symbol

ZAtomicnumber=NumberofprotonAMassnumber=Numberofprotons+Numberofneutrons

(a)

Expert Solution
Check Mark

Explanation of Solution

Given diagram for the decay is,

General Chemistry, Chapter 21, Problem 21.77QP , additional homework tip  1

Figure 1

From the diagram the isotope can be identified,

As is the Atom with atomic number 33here it has 39 neutrons.

Ge is the Atom with atomic number 32 here it has 40 neutrons.

Atomic number is decreased from 33to32  and there is no change in the mass number this means the atom undergoes positron(+10β) emission.

The nuclear reaction can be represented as,

3372As3272Ge++10β

(b)

Interpretation Introduction

Interpretation:

The type of decay and the isotope which undergoes that particular decay should be identified.

Concept Introduction:

Nuclear reaction is a physical process in which there is a change in identity of an atomic nucleus. Natural radioactive decays, artificial radioactive decays... are considered as nuclear reactions because these processes make changes in the identity of an atomic nucleus.

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

(b)

Expert Solution
Check Mark

Explanation of Solution

Given diagram for the decay is,

General Chemistry, Chapter 21, Problem 21.77QP , additional homework tip  2

Figure 2

From the diagram the isotope can be identified,

Ag is the Atom with atomic number 47 here it has 113 neutrons.

Cd is the Atom with atomic number 48 here it has 113neutrons.

Atomic number is increased from 47to48  and there is no change in the mass number this means the atom undergoes beta(10β) emission.

The nuclear reaction can be represented as,

47113Ag48113Cd+10β

(c)

Interpretation Introduction

Interpretation:

The type of decay and the isotope which undergoes that particular decay should be identified.

Concept Introduction:

Nuclear reaction is a physical process in which there is a change in identity of an atomic nucleus. Natural radioactive decays, artificial radioactive decays... are considered as nuclear reactions because these processes make changes in the identity of an atomic nucleus.

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)

Expert Solution
Check Mark

Explanation of Solution

Given diagram for the decay is,

General Chemistry, Chapter 21, Problem 21.77QP , additional homework tip  3

Figure 3

From the diagram the isotope can be identified.

Rn is the Atom with atomic number 86 here it has 136 neutrons.

Pb is the Atom with atomic number 84 here it has 134 neutrons.

Atomic number is decreased from 86to84  and the mass number is reduced to by 4, this means the atom undergoes alpha(24α) emission.

The nuclear reaction can be represented as,

86222Rn84218Pb+24α

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Chapter 21 Solutions

General Chemistry

Ch. 21 - Prob. 21.2QPCh. 21 - Prob. 21.3QPCh. 21 - Prob. 21.4QPCh. 21 - Prob. 21.5QPCh. 21 - Prob. 21.6QPCh. 21 - Prob. 21.7QPCh. 21 - Prob. 21.8QPCh. 21 - Prob. 21.9QPCh. 21 - Prob. 21.10QPCh. 21 - Prob. 21.11QPCh. 21 - Prob. 21.12QPCh. 21 - Prob. 21.13QPCh. 21 - Prob. 21.14QPCh. 21 - Prob. 21.15QPCh. 21 - Prob. 21.16QPCh. 21 - Prob. 21.17QPCh. 21 - Prob. 21.18QPCh. 21 - Prob. 21.19QPCh. 21 - Prob. 21.20QPCh. 21 - Prob. 21.21QPCh. 21 - Prob. 21.22QPCh. 21 - Prob. 21.23QPCh. 21 - Prob. 21.24QPCh. 21 - Prob. 21.25QPCh. 21 - Prob. 21.26QPCh. 21 - Prob. 21.27QPCh. 21 - Prob. 21.28QPCh. 21 - Prob. 21.29QPCh. 21 - Prob. 21.30QPCh. 21 - Prob. 21.31QPCh. 21 - Prob. 21.32QPCh. 21 - Prob. 21.33QPCh. 21 - Prob. 21.34QPCh. 21 - Prob. 21.35QPCh. 21 - Prob. 21.36QPCh. 21 - Prob. 21.37QPCh. 21 - Prob. 21.38QPCh. 21 - Prob. 21.39QPCh. 21 - Prob. 21.40QPCh. 21 - Prob. 21.41QPCh. 21 - Prob. 21.42QPCh. 21 - Prob. 21.43QPCh. 21 - Prob. 21.44QPCh. 21 - Prob. 21.45QPCh. 21 - Prob. 21.46QPCh. 21 - Prob. 21.47QPCh. 21 - Prob. 21.48QPCh. 21 - Prob. 21.49QPCh. 21 - Prob. 21.50QPCh. 21 - Prob. 21.51QPCh. 21 - Prob. 21.52QPCh. 21 - Prob. 21.53QPCh. 21 - Prob. 21.54QPCh. 21 - Prob. 21.55QPCh. 21 - Prob. 21.56QPCh. 21 - Prob. 21.57QPCh. 21 - Prob. 21.58QPCh. 21 - Prob. 21.59QPCh. 21 - Prob. 21.60QPCh. 21 - Prob. 21.61QPCh. 21 - Prob. 21.62QPCh. 21 - Prob. 21.63QPCh. 21 - Prob. 21.64QPCh. 21 - Prob. 21.65QPCh. 21 - Prob. 21.66QPCh. 21 - Prob. 21.67QPCh. 21 - Prob. 21.68QPCh. 21 - Prob. 21.69QPCh. 21 - Prob. 21.70QPCh. 21 - Prob. 21.71QPCh. 21 - Prob. 21.72QPCh. 21 - Prob. 21.73QPCh. 21 - Prob. 21.74QPCh. 21 - Prob. 21.75QPCh. 21 - Prob. 21.76QPCh. 21 - Prob. 21.77QPCh. 21 - Prob. 21.78QPCh. 21 - Prob. 21.79QPCh. 21 - Prob. 21.80QPCh. 21 - Prob. 21.81QPCh. 21 - Prob. 21.82QPCh. 21 - Prob. 21.83QPCh. 21 - Prob. 21.84QPCh. 21 - Prob. 21.85QPCh. 21 - Prob. 21.86QPCh. 21 - Prob. 21.87SPCh. 21 - Prob. 21.88SPCh. 21 - Prob. 21.89SPCh. 21 - Prob. 21.90SPCh. 21 - Prob. 21.91SPCh. 21 - Prob. 21.92SPCh. 21 - Prob. 21.93SPCh. 21 - Prob. 21.94SPCh. 21 - Prob. 21.95SPCh. 21 - Prob. 21.96SPCh. 21 - Prob. 21.97SPCh. 21 - Prob. 21.98SPCh. 21 - Prob. 21.99SP
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