What is the effect on neutron to proton ratio in a nucleus when `beta^(-)` particle is emitted ? Explain your answer with the help of a suitable nuclear reaction.

Explanation

To understand the effect on the neutron to proton ratio in a nucleus when a beta minus (β^(-)) particle is emitted, we need to analyze the process of beta decay and how it alters the composition of the nucleus.

### Step-by-Step Solution:

1. **Understanding Beta Minus Decay**:
In beta minus decay, a neutron in the nucleus is transformed into a proton. During this process, an electron (the beta particle) and an antineutrino are emitted. The nuclear reaction can be represented as:
\[
n \rightarrow p + e^- + \bar{\nu}
...