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Which of the following actinoids contain...

Which of the following actinoids contains `6d^(2)` electrons its valence shell electron configuration?

A

`Np`

B

`Th`

C

`U`

D

`Pa`

Text Solution

Verified by Experts

The correct Answer is:
B
The valence shell electron configuration of `Th` is `[Rn]6d^(2)7s^(2)` while others have just one `6d` electron.
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Knowledge Check

  • Which of the following lanthanoids does not contain 5d electron in its valence shell configuration?

    A
    `Pr`
    B
    `Ce`
    C
    `Gd`
    D
    `Lu`

  • Which of the following contains three pairs of electrons in the valence shell?

    A
    Carbocations
    B
    Carbanions
    C
    free radicals
    D
    none of these

  • Which of the following contains only one unpaired electron in the valence shell?

    A
    `11^(Na)`
    B
    `21^(Sc)`
    C
    `9^(F)`
    D
    `7^(N)`

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