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The atomic numbers of Ti, B, Cr and Mn a...

The atomic numbers of `Ti, B, Cr` and Mn are respectively `22,23,24` and `25`. Which one of these may be expected to have the highest second ionisation enthalpy?

A

Ti

B

Cr

C

V

D

Mn

Text Solution

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The correct Answer is:
B
`Cr[Ar] 4s^(1)3d^(5)`
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