Chapter 11, Problem 11.78CP

a)

Interpretation Introduction

Interpretation:

The balanced equation for the nuclear reaction has to be written.

Concept Introduction:

Alpha decay:

It is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is also known as helium nucleus.

An alpha particle is equal to the nucleus of a $\text{Helium}$ atom, which has two protons and two neutrons. It has a charge of $\text{+2 e}$ and a mass of $4 u$

${}_{\text{Z}}^{\text{A}}\text{X}{\to }_{\text{2}}^{\text{4}}{\text{He+}}_{\text{Z-2}}^{\text{A-4}}\text{Y}$

Balanced nuclear reaction:

For a balanced nuclear equation the mass number and atomic number on the both sides of the reaction should be equal.

b)

Interpretation Introduction

Interpretation:

The pacemaker battery enclosed in a metal case before being inserted into the chest cavity has to be identified.

Concept Introduction:

Pacemaker Battery:

An external device which is made up of wires and leads and it is used to regulate heartbeat when it placed under the chest.