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Number of completely filled orbitals in ...

Number of completely filled orbitals in xenon atom (Xe) is:

A

17

B

18

C

27

D

28

Text Solution

Verified by Experts

The correct Answer is:
C
`Xe_(54)to1s^(2)2s^(2)2p^(6)3s^(2)4s^(2)3d^(10)4p^(6)5s^(2)4d^(10)5p^(6)to1s^(2),2s^(2)2p^(6),3s^(2)3p^(6)3d^(10),4s^(2)4p^(6)4d^(10),5s^(2)5p^(6)`.
Twenty seven orbitals are occupied.
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