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Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.

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Alums

Hydrated sulfates of the general formula M+M3+(SO4)2.12H2).

Mother Nuclide

Nuclide that undergoes nuclear decay.

Single Bond

Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.

Explosive

A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

Strong Electrolyte

A substance that conducts electricity well in a dilute aqueous solution.

 

Group

A vertical column in the periodic table, also called a family.

Avogadro's Number

The number (6.022x10^23) of atoms, molecules or particles found in exactly 1 mole of substance.

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Breeder Reactor

A nuclear reactor that produces more fissionable nuclear fuel than it consumes.

Heat of Solution

The amount of heat absorbed in the formation of solution that contains one mole of solute, the value is positive if heat is absorbed (endothermic) and negative if heat is released (exothermic).