| A | B |
|---|
| Electron dot diagram | a diagram of an atom,ion or molecule in which each dot represents a valence electron |
| Ion | A charged particle that is formed when one or more valence electrons transfer from one atom to another |
| Chemical bond | a force of attraction that holds two atoms together |
| Ionic bond | the force of attraction between oppositely charged ions |
| Chemical formula | notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound |
| Crystals | solids whose particles are arranged in a lattice structure |
| Covalent bonds | A force that bonds two atoms together by a sharing of electrons |
| Molecule | A neutral group of two or more non-metal atoms held together by covalent bonds |
| Metallic bond | A force of attraction between a positively charged metal ion and the electrons in a metal |
| Alloy | a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal |
| Chemical Bonding | the joining of atoms to form new substances |
| Valence electrons | the electrons in the outermost energy level of an atom |
| Oxidation number | The charge that an atom would have if it lost or gained electrons; ionic charge |
| Positive ion | Atom that has lost electron(s) |
| Negative ion | Atom that has gained electron(s) |
| Diatomic molecule | molecules consisting of two atoms of the same element bonded together |
| Compound | A pure substance composed of two or more different elements (atoms) that are chemically combined |
