A term used to describe molecules and polyatomic ions that have one atom in the center and six atoms at the corners of a octahedron.
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Use of diamonds
Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...
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Allotropic Modifications (Allotropes)
Different forms of the same element in the same physical state.
Standard Electrodes
Half-cells in which the oxidized and reduced forms of a species are present at unit activity, 1.0M solutions of dissolved ions, 1.0atm partial pressure of gases, and pure solids and liquids.
Dermal toxicity
Adverse health effects resulting from skin exposure ot a substance.
xenon tetrafluoride
A colorless, crystalline compound, XeF4, prepared by heating a gaseous mixture of fluorine and xenon.
Salicylate
A salt or ester of salicylic acid.
Coordination Isomers
Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.
Semiconductor
A substance that does not conduct electricity at low temperatures but does so at higher temperatures.
Moderator
A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.
End Point
The point at which an indicator changes colour and a titration is stopped.
Acyl Group
Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.
