Atomic number of sodium is 11. What will be the atomic number of sodium ion `(Na^+)` and why?

Explanation

To determine the atomic number of the sodium ion \(Na^+\), we need to understand the relationship between atomic number, protons, and electrons.

### Step-by-Step Solution:

1. **Identify the Atomic Number of Sodium**:
- The atomic number of sodium (Na) is given as 11. This means that sodium has 11 protons in its nucleus.

2. **Understand the Concept of Ions**:
...