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Number of electrons that F (Z = 9) has i...

Number of electrons that F (Z = 9) has in p-orbitals is equal to:

A

number of electrons in s-orbitals in Na

B

number of electrons in d-orbitals in `Fe^(3+)`

C

number of electrons in d-orbitals in Mn

D

(A), (B) and (C) true

Text Solution

Verified by Experts

The correct Answer is:
D
`F(Z=9): 1s^(2)2s^(2)2p^(5)`, p - orbital has `5e^(-)s.`
`Na(Z=11), ls^(2)2s^(2)2p^(6)3s^(1)`, s - orbital has `5e^(-)s`
`Fe^(3+) (Z=26), 1s^(2)2s^(2)2p^(6)2p^(6)3s^(6)3d^(5)`, d - orbital has `5e^(-)s.`
`Mn(Z=25): 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(2)`, d - orbial has `5e^(-)s.`
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