| A | B |
|---|
| bond angles | angles between bonds connecting atoms in a molecule |
| VSEPR Theory | the theory that helps us predict the shape of a molecule based on the fact that electron pairs repel each other |
| linear | molecular shape made by 3 atoms in a molecule in a strait line (180 degree angles) |
| bent | molecular shape made by 3 atoms in an "L" shape (either 90 or 120 degree angle) |
| trigonal planar | molecular shape made by 3 atoms equally distributed around a central atom (120 degree angles) |
| trigonal pyramidal | molecular shape made by 4 atoms in a pyramid shape (109.5 degree angles) |
| tetrahedral | molecular shape made by 4 atoms equally distributed around a central atom (109.5 degree angles) |
| bonding pair | a pair of valence electrons in a Lewis structure that are shared by two electrons |
| lone pair | a pair of valence electrons in a Lewis structure that are only assigned to one atom and are not part of a bond |
| electron-domain geometry | the 3D geometry of the electron pairs around a central atom |
| molecular geometry | the 3D shaped formed by the atoms in a molecule |
| bond dipole | dipole moment due to unequal sharing of electrons in a covalent bond |
| hybrid orbitals | orbitals that result from mixing different types of orbitals |
| hybridization | the mixing of different types of atomic orbitals to produce a set of equivalent orbitals |
| sigma bond | the first covalent bond between two atoms |
| pi bond | the second or third covalent bond formed between two atoms |
| delocalized electrons | electrons that are spread between several atoms in a molecule not just between two. |
