Positive Metal Ions - Metal Atoms have lost their outer shell electrons, Delocalised (Free) Electrons - The electrons have come from the outer shells on the metal atoms, Pure Metals - Only contain one type of metal atom, Alloys - Mixtures of two or more elements where at least one is a metal, Metallic bonds  - Strong electrostatic attractions between the positively charged metal ions and the delocalised electrons, In an alloy, the atoms are different sizes which distorts the layered structure. - This makes an alloy harder and stronger than the pure metal, Pure metals only contain one type of metal so they are maliable.  - This means they can be hammered or bent without breaking - useful for making wires.g,

Leaderboard

Visual style

Options

Switch template

Continue editing: ?