| A | B |
|---|
| ion | atom that has gained or lost one or more electron |
| electoneutrality | condition of having equal numbers of positive and negative charges |
| octet rule | lose or gain electrons so orbitals have 8 electrons |
| ionic compound | any chemical comound that is composed of oppistely charged ions |
| binary ionic omound | an ionic comound that consists of cations od 1 element and anions of another element |
| ionic bond | the coulumbic foce if atraction between ions of opp. charge |
| halide | salt composed of cations combined with anions of one of the halogen elements |
| crystal lattice | a repetitive geometric arragement of points in space about which atoms, ions, or molecules are arranged to for a crystal structure |
| unit cell | the simplest repeating unit of crystal lattice |
| poly atomic ion | an electrically charged group of 2 or more chem. bonded atoms that fuctions as a single ion |
| silicates | anions are composed of long chains, sheets of alternating silicon and oxygen atoms with periodic neg. charges |
| hydrate | with water |
| anyhydrous | without water |
| bond leght | the distance of min. energy is the average distance between the nuclei |
| bond energy | energy required to break a bond |
| electronegativity | tendency of atoms to attract bonding electrons to itself when it bonds with another atom |
| non polar covalent | 0-.5 electronegativity |
| polar covalent | .6-2.1 electronegativity |
| ionic covalent | 2.2-3.3 electronegativelity |
| diphole | one end + the other end - |
| valence electrons | an electron in the outermost energy level of an atom, where it can particpate in bonding |
