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what is the ground state electronic configuration of a `_(27)` CO atom in the gas phase ?

A

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(7)4s^(2)`

B

`1s^(2)2s^(2)2p^(6)3s^(6)3d^(9)`

C

`1s^(2)2s^(2)2p^(6)3s^(6)3d^(8)4s^(1)`

D

`1s^(2)2s^(2)2p^(6)3s^(6)3d^(7)4s^(2)`

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Knowledge Check

  • The ground state electronic configuration of ""_(24)Cr is

    A
    `[Ar]3d^(5)4s^(1)`
    B
    `[Ar]3d^(4)4s^(2)`
    C
    `[Ar]3d^(3)4s^(2)4p^(1)`
    D
    `[Ar]3d^(6)4s^(0)`

  • The ground state electronic configuration of platinum is

    A
    `[Xe] 4f^(14) 5d^(9) 6s^(1)`
    B
    `[Kr] 4d^(10) 5s^(0)`
    C
    `[Xe] 4f^(14) 5d^(8) 6s^(2)`
    D
    `[Kr] 4d^(4) 5s^(1)`

  • Ground state electronic configuration of Cr atom is :

    A
    `[Ar]3d^(4)4s^(2)`
    B
    `[Ar]3d^(5)4s^(1)`
    C
    `[Ar]3d(6)4s^(0)`
    D
    `[Ar]3d^(5)4s^(2)`

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