| A | B |
| Metallic bond | the attraction between a metal cation and the shared electrons that surrond it |
| alloy | a mixture of tow or more elemtns, at least one of which is a metal, what has the chracteristic properties of a metal |
| Polyatomic ion | a covalently bonded gropup o atoms that has a positive or negative charge and acts as a unit |
| Covalent bond | a chemical bond in which two atoms share a pair of valence electrons |
| Molecule | a neutral group of atoms that are joined together by one or more covalent bonds |
| Polar Covalent bond | a covalent bond in which electrons are not shared equally |
| Electron Dot Diagram | a diagram of an atom, ion or molecule in which each dot represents a valence electron |
| ion | an atom or group of atoms that has a positive or negative charge |
| Cation | an ion with a positive charge |
| Anion | an ion with a negative charge |
| Chemical Bond | the force that holds atoms or ions together as a unit |
| Ionic Bond | the force that hold cations and anions together |
| Chemical Formula | notation that shows what elemetns a compound contains and the ratio of the atoms or ions of thes elements in the compound |
| Crystals | solids whose particles are arrange in a lattice structure |