When nucleus of an electrically neutral atom undergoes a radioactive decay process, it will remain neutral after the decay if the process is
(a) An `alpha`- decay (b) `A bete^(o+)`-decay
(c ) `A gamma`-decay (d) `A K`- caputure process

Options

A. an `alpha` decay
B. an `beta ` + decay
C. a `gamma` decay
D. a K capture

Explanation

To determine which radioactive decay process allows the nucleus of an electrically neutral atom to remain neutral after the decay, we need to analyze each option provided:

### Step 1: Understand the decay processes

1. **Alpha Decay**:
- In alpha decay, the nucleus emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons).
- This results in a decrease of 2 in the atomic number (Z) and a decrease of 4 in the mass number (A).
- Since an alpha particle carries a +2 charge, the atom becomes positively charged after this decay.
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