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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 strong

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

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