| A | B |
|---|
| sp^3 hybridization | Four new orbitals formed from one 2s and three 2p orbitals. |
| hybrid orbitals | A set of atomic orbitals adopted by an atom in a molecule different from those of the atom in the free state. |
| sp^2 hybridization | Three orbitals arranged at 120 degree angles formed from one 2s and two 2p orbitals. |
| sigma bond | A covalent bond in which the electron pair is shared in an area contered on a line running between the atoms. |
| pi bond | A covalent bond in which parallel p orbitals share an electron pair occupying the space above and below the line joining the atoms. |
| sp hybridization | Two hybrid orbitals arranged at 180 degrees formed from one s and one p orbital. |
| dsp^3 hybridization | Five hybrid orbitals formed by one d, one s and three p orbitals with a trigonal bipyramidal arrangement. |
| d^2sp^3 hybridization | Six hybrid orbitals arranged octahedrally formed from two d, one s and three p orbitals. |
| molecular orbital model | A model that regards a molecule as a collection of nuclei and electrons where the orbitals extend over the entire molecule. The electrons are assumed to be delocalized rather than always located between a given pair of atoms. |
| molecular orbital (MO) | Similar to atomic orbitals but for molecular probolems. |
| sigma molecular orbital | MO1 and MO2 electron distributions for molecular orbitals. |
| bonding molecular orbital | An orbital lower in energy than the atomic orbitals of which it is composed. |
| hybridization | A mixing of the native orbitals on a given atom to form special atomic orbitals for bonding. |
| antibonding molecular orbital | An orbital higher in energy than the atomic orbitals of which it is composed. |
| bond order | The difference between the number of bonding electrons and the number of antibonding electrons, divided by two. It is an idex of bond strength |
| pi molecular orbital | Two p orbitals that lie parallel overlap to produce two of these, one bonding and one antibonding. |
| paramagnetism | A type of induced magnetism, associated with unpaired electrons, that causes a substance to be attracted into the inducing magnetic field. |
| diamagnetism | A type of magnetism, associated with paired electrons, that causes a substance to be repelled from the inducing magnetic field. |
| heteronuclear diatomic molecule | ?? |
| delocalized pi bonding | ?? |
