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B Group elements except IIB in the periodic table, sometimes called simply transition elements EX. Fe, Ni, Cu, Ti .
For further information see Metals.

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Solvolysis

The reaction of a substance with the solvent in which it is dissolved.

Pauli Exclusion Principle

No two electrons in the same atom may have identical sets of four quantum numbers.

Sublimation

The direct vaporization of a sold by heating without passing through the liquid state.

Formula Unit

The smallest repeating unit of a substance. The molecule for nonionic substances

Crystal Lattice

A pattern of arrangement of particles in a crystal.

Zone Refining

A method of purifying a bar of metal by passing it through an induction heater, this causes impurties to move along a melted portion. This method applies the fact when a metal crystallizes on cooling, impurities are automatically expelled as they do not form part of the crystal.

Photochemical Smog

A brownish smog occurring in urban areas receiving large amounts of sunlight, caused by photochemical (light-induced) reactions among nitrogen oxides, hydrocarbons and other components of polluted air that produce photochemical oxidants.

 

Law of Conservation of Matter and Energy

The total amount of matter and energy available in the universe is fixed.

Concentration

Amount of solute per unit volume or mass of solvent or of solution.

Secondary Voltaic Cells

Voltaic cells that can be recharged, original reactanats can be regenerated be reversing the direction of the current flow.