Metallic Bonding

Which statement correctly defines metallic bonding?

A student draws a 2-D diagram of a metallic lattice. Each circle is labelled with a “+” sign, and electrons are drawn inside each circle, attached to individual ions. Which correction must the student make?

Why is a metallic lattice described as a giant structure?

When metal atoms pack together to form a metallic lattice, what happens to their outer-shell electrons?

Explain why metals are good conductors of electricity.

A student writes: “Metals are malleable because layers of ions can slide over each other.” An examiner awards only 1 mark out of 3. What key idea is the student missing?

A solid block of sodium chloride shatters when hit with a hammer, but a block of copper bends. Which explanation correctly accounts for this difference?

Which pair of features must both be visible in a correctly drawn 2-D metallic lattice diagram?

A strip of aluminium is connected to a battery and a bulb in a circuit. The bulb lights up. A block of solid magnesium oxide is then substituted for the aluminium strip, and the bulb does not light. Which statement best explains this observation?

In a metallic lattice, the electrostatic attraction responsible for bonding acts between which pair of species?

A metallurgist heats a metal rod and hammers it into a flat sheet. During this process, the metallic bonding within the metal does not break. Which statement correctly explains why?

A student is asked to compare the structures of metals and solid ionic compounds. Which row correctly matches both structures?