Question

Transition elements show high melting points. Why?

Answer 1

The general electronic configuration of transition elements is $(n-1)d^{1-10}n{s}^{0-2}$

In transition metals, in addition to 𝑛𝑠 electrons, $(n-1)d$ electrons also participate in interatomic metallic bonding. This results in stronger metallic bonds which keep the atoms closely packed.

That’s why transition elements have high melting points.