Chapter 20, Problem 113QGW

Interpretation Introduction

Interpretation:

The balanced nuclear equations for each step of the nuclear decay sequence which starts with $\text{U-238}$ and ends with $\text{U-234}$ are to be written.

Concept introduction:

During the alpha decay, the daughter nuclide which is formed has mass number less than by 4 units and atomic number less than by 2 units. The symbol for alpha particle is denoted as $\text{H}\text{e}$.

During the beta decay, the daughter nuclide which is formed has same mass number and atomic number increases by 1 unit. The symbol for beta particle is denoted as ${}_{-1}^0\text{e}$.

In the balanced nuclear equations, the sum of mass numbers and the sum of atomic numbers on both sides are equal.