Chapter 19.2, Problem 1RCF

(a)

Interpretation Introduction

Interpretation:

${}^{13}B$, is an unstable isotope undergoes beta decay or positron emission has to be predicted and nuclear reaction has to be written.

Concept Introduction:

Nuclear stability means that the nucleus is stable meaning that it does not spontaneously emit any kind of radioactivity.

Stable nucleus is non-radioactive and unstable nucleus is radioactive.

A representation or a plot showing n/p ratio of various isotopes is known as belt of stability.

(b)

Interpretation Introduction

Interpretation:

${}^{188}Au$, is an unstable isotope undergoes beta decay or positron emission has to be predicted and nuclear reaction has to be written.

Concept Introduction:

Nuclear stability means that the nucleus is stable meaning that it does not spontaneously emit any kind of radioactivity.

Stable nucleus is non-radioactive and unstable nucleus is radioactive.

A representation or a plot showing n/p ratio of various isotopes is known as belt of stability.