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Correct ground state electronic configur...

Correct ground state electronic configuraton of Cr is:

A

`[Ar] 3 d "^4 4s^2`

B

`[Ar] 3d^5 4s^1`

C

`[Ne] 3 d^5 4s^1`

D

`[Ne] 3d^24 4s^2`.

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Knowledge Check

  • The electronic configuration of Cr^(3+) is

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

  • Which o the following is the ground state electronic configuration of Cr (atomic number of Cr is 24)-

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

  • The ground state electronic configuration of CO molecule is-

    A
    `1sigma^(2)2sigma^(2)1pi^(2)3sigma^(2)`
    B
    `1sigma^(2)2sigma^(2)3sigma^(2)1pi^(2)2pi^(2)`
    C
    `1sigma^(2)2sigma^(2)1pi^(2)3sigma^(2)2pi^2`
    D
    `1sigma^(2)1pi^(4)2sigma^(2)3sigma^(2)`

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