Identify the common name of group of elements based on following facts: Elements with 2 electrons in the valence shell

Explanation

To identify the common name of the group of elements that have 2 electrons in their valence shell, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Valence Electrons**:
- Valence electrons are the electrons in the outermost shell of an atom. They determine how an element reacts chemically.

2. **Identifying the Group**:
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