Question

Why does sodium have a lower melting point then magnesium

Answer 1

Answer:

Number of delocalized electrons

Explanation:

Magnesium has more delocalized electrons compared to sodium and this accounts for the higher melting point.

• When magnesium atoms comes together to form a metallic bonds, they have more network of delocalized electrons.
• There is more pull for the localized electrons due to the nuclear charge on the nucleus.
• This strong intermolecular metallic bond increases the melting point of magnesium.