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The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.

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Allotropes

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

Molecular Formula

Formula that indicates the actual number of atoms present in a molecule of a molecular substance.

Alkynes

Unsaturated hydrocarbons that contain one or more carbon-carbon triple bonds.

Domain

A cluster of atoms in a ferromagnetic substance, all of which align in the same direction in the presence of an external magnetic field.

Aromatic Hydrocarbons

Benzene and its derivatives.

Voltaic Cells

Electrochemical cells in which spontaneous chemical reactions produce electricity, also called galvanic cells.

 

Electronic Geometry

The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.

Critical Temperature

The temperature above which a gas cannot be liquefied, the temperature above which a substance cannot exhibit distinct gas and liquid phases.

Endothermic

Describes processes that absorb heat energy.

Hydrophilic Colloids

Colloidal particles that repel water molecules.