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Consider the ground state of Cu atom (Z ...

Consider the ground state of Cu atom (Z = 29). The number of electrons with the azimuthal quantum numbers l=1 and 2 are, respectively,12,5 12,10 16,6 14,8

A

12, 5

B

12, 10

C

16, 6

D

14, 8

Text Solution

Verified by Experts

The correct Answer is:
B
The electronic configuration of `""_(29)Cu` is `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10) 4s^(1)`
`l=1` corresponds to p orbital. The number of electrons in p orbital is `6+6=12`
`l=2` corresponds to d orbital. The number of electrons in d orbitals is 10
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