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The valence shell electronic configurati...

The valence shell electronic configuration of `Cr^(2+)` ion is

A

`3 p^(2) 4 s^(2)`

B

`4 s^(2) 3 d^(2)`

C

`4 s^(2) 3 d^(0)`

D

`4 s^(0) 3 d^(0)`

Text Solution

Verified by Experts

The correct Answer is:
D
Electronic configuration of chromium
`Cr rarr [Ar] 3d^(5) 4 s^(0)`
`Cr^(2 +) rarr [Ar] 3d^(4) 4 s^(0)`
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Knowledge Check

  • Electronic configuration of Fe^(2+) ion is

    A
    `[Ar]4s^(2) 3d^4`
    B
    `[Ar]4s^(1) 3d^5`
    C
    `[Ar] 3d^6`
    D
    `[Ar]3d^8`

  • The electronic configuration of Cu^(2+) ion is :

    A
    `[Ar]4s^(1) 3d^(8)`
    B
    `[Ar]4s^(2)3d^(10)4p^(1)`
    C
    `[Ar]4s^(1)3d^(10)`
    D
    `[Ar]3d^(9)`

  • The valence shell electronic configuration of the Fe^(2 +) is.

    A
    `3 s^2 3 d^6`
    B
    `3 s^1 3 d^7`
    C
    `3 s^0 3 d^8`
    D
    `3 s^2 3 d^5`

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