Question

10 sep compare models explain how the bonding model for sodium metal would differ from the bonding model for sodium chloride, nacl.

Explanation:

Sodium metal has metallic bonding where delocalized electrons move freely among positive - ion lattice. Sodium chloride has ionic bonding due to transfer of electron from sodium to chlorine, creating positive and negative ions that attract each other.

Answer:

Sodium metal has metallic bonding with delocalized electrons in a sea around positive sodium ions. Sodium chloride has ionic bonding with a transfer of an electron from sodium to chlorine, resulting in $Na^+$ and $Cl^-$ ions that are held together by electrostatic forces.