Question

In first transition series, the melting point of Mn is low because
(a) due to d¹⁰ configuration, metallic bonds are strong
(b) due to d⁷ configuration, metallic bonds are weak
(c) due to d⁵ configuration, metallic bonds are weak
(d) None of these

Answer 1

Option B is correct ✔✔

Thanks

☺☺☺

Answer 2

Answer:

In the first transition series, the melting point of Mn is low because of the d⁵ configuration, metallic bonds are weak i.e.option (c).

Explanation:

• The electronic configuration of Mn is [Ar]3d⁵4s².
• Because the d⁵ orbital is half-filled, 3d electrons are more securely bound by the nucleus, reducing electron de-localization and resulting in weaker metallic bonding.
• Metallic bonds are weak due to the d⁵ structure.

Hence, the correct answer among the given option is (c).i.e.due to the d⁵ configuration, metallic bonds are weak.

#SPJ2