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A molecular orbit lower in energy than any of the atomic orbitals from which it is derived, lends stability to a molecule or ion when populated with electron.

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Nernst Equation

Corrects standard electrode potentials for nonstandard conditions.

Cis-Trans Isomerism

A type of geometrical isomerism related to the angles between like ligands.

Cohesive Forces

All the forces of attraction among particles of a liquid.

Forbidden Zone

A relatively large energy separation between an insulator's highest filled electron energy band and the next higher energy vacant band. Beginning in the fourth energy level, a set of seven degenerate orbitals per energy level, higher in energy than s, p, and d orbitals of the same energy level.

Safranine

Also called "phenosafranine". A purplish-red, water-soluble dye, C18H14N4, used for textiles and as a stain in microscopy.

Nuclear Binding Energy

Energy equivalent of the mass deficiency, energy released in the formation of an atom from the subatomic particles.

 

Melting Point

The temperature at which liquid and solid coexist in equilibrium, also the freezing point.

Line Spectrum

An atomic emission or absorption spectrum.

Ore

A natural deposit containing a mineral of an element to be extracted.

Degenerate

Of the same energy.