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In an atom which has 2K, 8L, 8M and 2N e...

In an atom which has 2K, 8L, 8M and 2N electrons in the ground state, the total number of electrons having l=1 are

A

20

B

8

C

12

D

10

Text Solution

Verified by Experts

The correct Answer is:
C
The configuration of the atom is `1s^(2)2s^(2)2p^(6)3s^(2).3p^(6)4s^(2)`. Thus, total number of electrons with l = 1, i.e., belonging to p-subshell are 12 (6 in 2p and 6 in 3p).
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