| A | B |
|---|
| bond angle | angle formed by 2 atoms attached to the central atom in a molecule |
| bonding electrons | valence electrons in a molecule that are shared |
| chemical bond | attraction between 2 ions & 2 atoms |
| coordinate covalent bond | bond in which an electron pair is shared but both electrons have been donated by a single atom |
| diatomic molecule | molecule made up of 2 nonmetal atoms held together by a covalent bond |
| double bond | bond made up of 2 shared electron pairs between 2 atoms |
| electron dot formula | diagram of a molecule which @ atom is surrounded by 2 dots for @ pair of bonding or nonbonding electrons |
| electronegativity | ability of an atom to attract a shared pair of electrons |
| formula unit | simplest representative particle in a substance held together by ionic bonds |
| ionic bond | a chemical bond characterized by the attraction between a cation and anion |
| molecular shape | the geometric shape formed by atoms bonded to a central atom in a molecule |
| molecule | simplest representative particle in a substance held together by covalent bonds |
| nonbonding electron | valence electrons in a molecule that are not shared |
| nonpolar bond | a bond in which a pair of electrons is shared equally |
| octet rule | an atom must be surrounded by 8 valence electrons to be stable |
| polar bond | bond in which a pair of electrons is shared unequally |
| polyatomic ion | group of atoms held together by covalent bonds that has an overall positive or negative charge |
| single bond | a bond of one shared electron pair between 2 atoms |
| structural formula | diagram of a molecule which each atom is represented by its chemical symbol and a dash for each pair of bonding electrons |
| triple bond | a bond made up of 3 shared electron pairs between 2 atoms |
| valence electrons | the electrons in the outermost energy level that are available for bonding |
| covalent bond | a chemical bond which shares one or more pairs of valence electrons |
