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Electronic confriguration of a transitio...

Electronic confriguration of a transition element X in +3 oxidation states is `[Ar]3d^(5)`.
What is its atomic number?

A

25

B

26

C

27

D

24

Text Solution

Verified by Experts

The correct Answer is:
B
`X^(3+) = [Ar]^(18) 3d^(5) = 23 ` electrons . As `X^(3+)` is formed by loss of 3 electrons from X,X will have 26 electrons. `:. `At. No. of X = 26
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Knowledge Check

  • Electronic configuration of a transition element in + 3 oxidation state is [Al] 3d^(5) . What is is atomic number

    A
    25
    B
    26
    C
    27
    D
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  • The common oxidation state of transition elements is

    A
    `+2`
    B
    `+4`
    C
    `+3`
    D
    `+7`

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    A
    25
    B
    26
    C
    22
    D
    19

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