Question

Why magnesium has lower melting point than calcium?

Answer 1

The melting points get lower as you go down the Group because the metallic bonds get weaker. The oddity ofmagnesium has to be explained separately. The atoms in a metal are held together by the attraction of the nuclei to the delocalised electrons. Hope it helps you pls mark it as brainliest

Answer 2

Manganese has lower Melting and boiling point ;

# Because of the following reasons :--

• With decrease in unpaired or vacant electrons or orbitals, Melting and Boiling point also decreases .

• Thus, there is weak mettalic bonding further due to less unpaired electrons .

• It reduces Enthalpy of Atomization value .