Question

4. The electronic configuration of an atom is 2, 8, 7. With which of the following elements it will resemble chemically
1) N
2) F
3) P
4) AR​

Answer 1

Answer:

⇒ 2+8+7 = 17. Therefore, the atomic number of this element is 17 and the element is chlorine. It would be chemically similar to F(9) with configuration as 2, 7.

Explanation:

2) is right hope it helps you

Answer 2

$\huge\sf\underline\red{Answer}$

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The electronic configuration of an atom is 2, 8, 7.

it will resemble chemically with option F.(flourine)

WHY?

SINCE THE ELECTRONIC CONFIGURATION OF AN ATOM (CHLORINE) IS 2,8,7.,IT NEEDS 1 MORE ELECTRON IN ORDER TO GET A STABLE ELECTRONIC Configuration.

SO IT COMBINES WITH FLOURINE (2,7).

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