Consider the following elements :
`""_(20)A, ""_(8)B, ""_(18)C, ""_(16)D, ""_(4)E, ""_(2)F`
Answer the following giving reasons :
Which of the above elements you would expect to be
in group 2 of the periodic table.

Explanation

To determine which of the given elements belongs to Group 2 of the periodic table, we need to analyze their electronic configurations based on their atomic numbers. Group 2 elements, also known as alkaline earth metals, have two electrons in their outermost shell.

### Step-by-Step Solution:

1. **Identify the Atomic Numbers and Elements**:
- A: Atomic number 20
- B: Atomic number 8
- C: Atomic number 18
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