Chapter 19, Problem 19.6QP

Interpretation Introduction

Interpretation:

The table given shows the mode of decay and the corresponding change in mass number (A), atomic number (Z), and number of neutrons (N) has to be completed.

Concept Introduction:

In alpha decay ($\alpha$ )-Mass number decreases by 4 and atomic number decreases by 2

In beta decay (${}_{-1}^0\beta$)- Mass number remains unchanged and atomic number increases by 1

In gamma decay ($\gamma$)- Mass number remains unchanged and atomic number remains unchanged.

In positron emission (${}_{+1}^0\beta$ ) - Mass number remains unchanged and atomic number decreases by 1

In electron capture- Mass number remains unchanged and atomic number decreases by 1

Atomic number is the number of protons, represented by $Z$

Mass number is the number of protons plus neutrons, represented by $A$

$Numberofneutrons=MassNumber-AtomicNumber$