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One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

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Period

The elements in a horizontal row of the periodic table.

Alkaline Earth Metals

Group IIA metals

Silicones

Polymeric organosilicon compounds, contain individual or cross-linked Si-O chains or rings in which some oxygens of SiO4 tetrahedra are replaced by other groups.

Lone Pair

Pair of electrons residing on one atom and not shared by other atoms, unshared pair.

Diamagnetism

Weak repulsion by a magnetic field.

Frasch Process

Method by which elemental sulfur is mined or extracted. Sulfur is melted with superheated water (at 170°C under high pressure) and forced to the surface of the earth as a slurry.

 

Allotropes

Different forms of the same element in the same physical state.

Temperature

A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.

Distillation

The separation of a liquid mixture into its components on the basis of differences in boiling points. The process in which components of a mixture are separated by boiling away the more volitile liquid.

Bond Order

Half the numbers of electrons in bonding orbitals minus half the number of electrons in antibonding orbitals. Bond order gives an indication to the stability of a bond. Also defined as the difference between the number of bonding electrons and antibonding electrons divided by two.