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A favourable interaction of two electrons with opposite m , values in the same orbital.

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Autoionization

An ionization reaction between identical molecules.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.

Distillate

The material in a distillation apparatus that is collected in the receiver.

 

Cation

A positive ion, an atom or group of atoms that has lost one or more electrons.

Resonance

The concept in which two or more equivalent dot formulas for the same arrangement of atoms (resonance structures) are necessary to describe the bonding in a molecule or ion.

Boiling Point Elevation

The increase in the boiling point of a solvent caused by the dissolution of a nonvolatile solute.

Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Binary Compound

A compound consisting of two elements, may be ionic or covalent.

Crystal Lattice

A pattern of arrangement of particles in a crystal.

Isoelectric

Having the same electronic configurations.