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An element in +3 oxidation state has the...

An element in +3 oxidation state has the electronic configuration `[Ar]3d^3`. Its atomic number is

A

24

B

23

C

22

D

21

Text Solution

Verified by Experts

The correct Answer is:
A
`M^(3+) rarr [Ar]3d^3` i.e., 21electrons
Hence element M has atomic number = 21 + 3 = 24.
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