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The number of unpaired electrons present in the first excited state of chlorine atom is: A 1 B 3 C 5 D 2

The number of unpaired electrons present in the first excited state of chlorine atom is:

A

1

B

3

C

5

D

2

 

Grade:12

1 Answers

Mayank Ranka
askIITians Faculty 232 Points
11 months ago

The number of unpaired electrons present in the first excited state of the chlorine atom is 3. The electronic configuration of chlorine is [Ne]3s23px23py23pz1. Thus, it contains 1 unpaired electron. In the first excited state, 1 electron is transferred from 3p to 4s orbital. The electronic configuration becomes [Ne]3s23px23py13pz14s1 Thus, three unpaired electrons are present in the excited state.

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