What is the primary characteristic of metallic bonding that differentiates it from ionic and covalent bonding?

• Delocalization of electrons

• Sharing of electrons

• Formation of molecules

• Transfer of electrons

In the context of metallic bonding, what is the role of delocalized electrons in aluminum?

• They remain fixed in place within the lattice.

• They are transferred to non-metal atoms.

• They create a sea of electrons that holds the metal atoms together.

• They form covalent bonds with other atoms.

Why do metals generally have properties like malleability and electrical conductivity?

• Due to the presence of ionic bonds

• As a result of the sea of delocalized electrons

• Because of the strong covalent bonds

• Because of the weak metallic bonds

What factor contributes to magnesium having stronger metallic bonds than sodium?

• Magnesium has a higher atomic density and more delocalized electrons.

• Sodium has a higher atomic number.

• Sodium atoms are more tightly packed.

• Magnesium has fewer delocalized electrons.

How does the packing of atoms in the lattice affect the strength of metallic bonds?

• Looser packing results in stronger bonds.

• Tighter packing results in stronger bonds.

• Packing does not affect bond strength.

• Atoms do not pack in a lattice structure.