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An orbit resulting from overlap and mixing of atomic orbitals on different atoms. An MO belongs to the molecule as a whole.

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Hydrocarbons

Compounds that contain only carbon and hydrogen.

Crystal Lattice Energy

Amount of energy that holds a crystal together, the energy change when a mole of solid is formed from its constituent molecules or ions (for ionic compounds) in their gaseous state.

Cell Potential

Potential difference, Ecell, between oxidation and reduction half-cells under nonstandard conditions.

 

Nickel-cadmium cell (Nicad battery)

A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

Isomers

Different substances that have the same formula.

Partial Pressure

The pressure exerted by one gas in a mixture of gases.

Free Energy Change

The indicator of spontaneity of a process at constnt T and P. If delta-G is negative, the process is spontaneous.

Frequency

The number of repeating corresponding points on a wave that pass a given observation point per unit time.

Nucleons

Particles comprising the nucleus, protons and neutrons.

Heteronuclear

Consisting of different elements.