What is meant by the term Quantization of charge ?

Explanation

### Step-by-Step Solution:

1. **Definition of Quantization of Charge**:
- Quantization of charge refers to the principle that electric charge can only exist in discrete amounts, specifically as integral multiples of a fundamental unit of charge.

2. **Fundamental Charge**:
- The fundamental unit of charge is denoted as \( e \), which is the charge of a single electron or proton. The value of \( e \) is approximately \( 1.6 \times 10^{-19} \) coulombs.

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