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A neutral atom of an electron has 2K,8L...

A neutral atom of an electron has `2K,8L` and `5M` electron .Find out the following
Atomic number of neutral atom

A

20

B

18

C

15

D

25

Text Solution

Verified by Experts

The correct Answer is:
C
The electronic configuration of an atom with `2K,8L` and `5M` electron is :
`1s^(2)2s^(2)2p_(x)^(2)2p_(y)^(2)2p_(z)^(2)3s^(2)3p_(x)^(1)3p_(y)^(1)3p_(z)^(1)`
Atomic number = Number of electron `= 15`
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