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In first transition series, the melting ...

In first transition series, the melting point of Mn is low because

A

Due to `d^(10)` configuration, metallic bonds are weak

B

Due to `d^(7)` configuration, metallic bonds are weak

C

Due to `d^(5)` configuration, metallic bonds are weak

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Due to `d^(5)` configuration, metallic bonds are weak. `d^(5)` orbital is half filled as a result 3d electrons are more tightly held by the nucleus and this reduces the de-localization of electrons resulting in weaker metallic bonding.
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