Metallic lattices feature:

Metallic lattices feature:

• A. Delocalized electrons forming a sea around metal ions
• B. Fixed molecules with covalent bonds
• C. Discrete molecules with hydrogen bonding
• D. Ionic bonds between atoms

Answer: (A)

Metallic lattices are held together by metallic bonding, where a lattice of metal ions is surrounded by a sea of delocalized electrons that move freely around them. These electrons aren’t attached to any one atom, so they can flow when a potential difference is applied, making metals good conductors of electricity. The same delocalized electron cloud also lets layers of atoms slide past one another without breaking the bonds, giving metals their malleability and ductility. The other descriptions don’t fit metallic lattices: fixed covalent bonds describe materials with strong local bonds and little electron mobility; discrete molecules with hydrogen bonding refer to molecular substances held by specific, directional H-bonds; ionic bonds describe compounds with alternating positive and negative ions in a lattice, not a sea of delocalized electrons around metal ions. So the correct view is a lattice of metal ions permeated by a sea of delocalized electrons.

Metallic lattices are held together by metallic bonding, where a lattice of metal ions is surrounded by a sea of delocalized electrons that move freely around them. These electrons aren’t attached to any one atom, so they can flow when a potential difference is applied, making metals good conductors of electricity. The same delocalized electron cloud also lets layers of atoms slide past one another without breaking the bonds, giving metals their malleability and ductility. The other descriptions don’t fit metallic lattices: fixed covalent bonds describe materials with strong local bonds and little electron mobility; discrete molecules with hydrogen bonding refer to molecular substances held by specific, directional H-bonds; ionic bonds describe compounds with alternating positive and negative ions in a lattice, not a sea of delocalized electrons around metal ions. So the correct view is a lattice of metal ions permeated by a sea of delocalized electrons.