Chapter 17, Problem 68E

Interpretation Introduction

Interpretation:

The partial decay series of $\text{U-235}$ undergoing $\alpha ,\alpha ,\beta ,\alpha$ sequential decays is to be written.

Concept introduction: when an unstable nucleus emits $\text{α}$ decay, then the mass number decreases by four and atomic number decreases by two. It is represented as: $\text{H}\text{e}$

Beta decay $\left(\beta \right)$ occurs when an unstable nucleus emits an electron.

During beta decay, atomic number increases by one and there are no changes in mass number.