- Valence Bond Theory
- Assumes that covalent bonds are formed when atomic orbitals on different
atoms overlap and the electrons are shared.
- Valence Electrons
- Outermost electrons of atoms; usually those involved in bonding.
- Valence Shell Electron Pair Repulsion Theory
- Assumes that electron pairs are arranged around the central element of a
molecule or polyatomic ion so that there is maximum separation (and minimum
repulsion) among regions of high electron density.
- van der Waals' Equation
- An equation of state that extends the ideal gas law to real gases by
inclusion of two empirically determined parameters, which are different for
- A gas formed by boiling or evaporating a liquid.
- Vapor Pressure
- The particle pressure of a vapor at the surface of its parent liquid.
- Potential difference between two electrodes; a measure of the chemical
potential for a redox reaction to occur.
- Voltaic Cells
- Electrochemical cells in which spontaneous chemical reactions produce
electricity; also called galvanic cells.