An element has electronic configuration
2,8,7
The element will show resemblance with which of the following elements ?
N(7), F(9), P(15), Ar(18), Ca(20)

Explanation

To determine which element resembles the one with the electronic configuration of 2, 8, 7, we can follow these steps:

### Step 1: Identify the Element
The electronic configuration 2, 8, 7 indicates that the element has:
- 2 electrons in the first shell
- 8 electrons in the second shell
- 7 electrons in the third shell

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