| A | B |
|---|
| valence electron | an electron that is found in the outermost shell of an atom that determines the atom's chemical properties |
| chemical bond | an interaction that holds atoms or ions together |
| ionic bond | the attractive force between oppositely charged ions, which form when electrons are transferred from on atom to another |
| ion | a charged particle that forms when an atom or group of atoms gain or loses one or more electrons |
| crystal lattice | the regular pattern in which a crystal is arranged |
| covalent bond | a bond formed when atoms share one or more pairs of electrons |
| molecule | a group of atoms that are held together by chemical forces; a molecule is the smallest unit of matter that can exist by itself and retain all of a substance's chemical properties |
| metallic bond | a bond formed by the attraction between positvely charged metal ions and the electron around them |
| ductility | the mixture of more than two elements |
| malleability | poundabile, made into objects |
| diatomic | written out in elements, ie H2O |
| electron dot diagram | the symbol for the element surrounded by as many dots as there are electronics in its outer energy level; the dots are written in pairs on four sides of the element symbol |
| electron cloud | a region around the nucleus of an atom where electron are likely to be found |
