Question

Why is metallic bond stronger in 5d series than 4d?

Answer 1

Answer:

The elements with highest enthalpy of atomisation tend to be noble metals. The 4d and 5d of transition metals shows greater enthapies of atomisation than the elements of 3d series due to which 4d and 5d of transition metals have more frequent metal-metal bonding in their compounds than 3d metals.