Question

give reason for the following
1. transition metals have high enthalpies of atomization.
2. manganese has lower melting point even though it has a number of unpaired electrons for bonding​

Answer 1

Answer:

1. Transition element have high effective nuclear charge and a large number of valence electron So, as a result of greater number of electrons participating very strong metallic bonds are formed as a result of the strong and triatomic metallic bonding the transition metals have high enthalpy of atomisation.

2. Manganese has lower melting point even though it has a higher number of unpaired electrons for bonding. Melting points depends on the intramolecular or interatomic forces. Stronger the forces, higher the melting point.