Chapter 21, Problem 3SEPP

Interpretation Introduction

Interpretation:

The product formed from the decay of radon-$222$ is to be determined.

Concept Introduction:

In a balanced radioactive decay,

${\displaystyle \sum \text{Reactant mass number = }{\displaystyle \sum \text{Product mass number}}}.$

And

${\displaystyle \sum \text{Reactant atomic number = }{\displaystyle \sum \text{Product atomic number}}}.$

In the balanced radioactive decay, the subscript present on the individual particles represents the atomic number, while the superscript represents the atomic mass.