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Oxidation States of Actinides

A transition ...

Question

A transition element X has a configuration $[A r] 3 d^{6}$ in its +3 oxidation state. Its atomic number is

A

25

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B

26

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C

27

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D

29

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Solution

The correct option is C 27
Explanation :

Since three electrons are lost, so the atomic number is 18 + 6 + 3 = 27.

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