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Refers to crystals having the same atomic arrangement.

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Percent Composition

The mass percent of each element in a compound.

Aufbau ('building up') Principle

Describes the order in which electrons fill orbitals in atoms.

Inert s-pair Effect

Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.

Surface Tension

It is the force in dynes acting along the surface of the liquid 1cm in length and perpendicular to it.

Supercooled Liquids

Liquids that, when cooled, apparently solidify but actually continue to flow very slowly under the influence of gravity e.g glass.

Electroplating

Plating a metal onto a (cathodic) surface by electrolysis.

Entropy

A thermodynamic state or property that measures the degree of disorder or randomness of a system.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Pairing

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

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.