Ionic bond formation takes place between sodium and chlorine. But between hydrogen and chlorine, covalent bond formation takes place. Give reason.

Explanation

To understand why ionic bond formation occurs between sodium and chlorine, while covalent bond formation occurs between hydrogen and chlorine, we need to analyze the properties of these elements and their tendencies to gain or lose electrons.

### Step-by-Step Solution:

1. **Identify the Elements**:
- Sodium (Na) is a metal and belongs to Group 1 of the periodic table.
- Chlorine (Cl) is a non-metal and belongs to Group 17 of the periodic table.
- Hydrogen (H) is a non-metal and is located in Group 1.
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