On the basis of electron affinity, comment on the resemblance of hydrogen with halogens.

Explanation

**Step-by-Step Solution:**

1. **Understanding Electron Affinity:**
- Electron affinity is defined as the amount of energy released when an atom in the gaseous state accepts an electron to form an anion. This concept is crucial for comparing hydrogen with halogens.

2. **Electron Configuration of Hydrogen:**
- Hydrogen has an atomic number of 1, which means it has one electron. Its electronic configuration is 1s¹.
- To achieve stability, hydrogen needs to gain one more electron to complete its outer shell, reaching the electronic configuration of helium (1s²), which is a stable noble gas configuration.
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