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The process in which a heavy nucleus splits into nuclei of intermediate masses and one or more protons are emitted.

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Double Salt

Solid consisting of two co-crystallized salts.

 

Electron Configuration

Specific distribution of electrons in atomic orbitals of atoms or ions.

Metathesis Reactions

Reactions in which two compounds react to form two new compounds, with no changes in oxidation number. Reactions in which the ions of two compounds exchange partners.

 

Square Planar

A term used to describe molecules and polyatomic ions that have one atom in the center and four atoms at the corners of a square.

Ionic Geometry

The arrangement of atoms (not lone pairs of electrons) about the central atom of a polyatomic ion.

Hydration

Reaction of a substance with water.

Ideal Gas

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

 

Charle's Law

At constant pressure the volume occupied by a definite mass of gas is directly proportional to its absolute temperature.

Double Bond

Covalent bond resulting from the sharing of four electrons (two pairs) between two atoms.

ytterbia

Ytterbia is a colorless compound, Yb2O3, used in certain alloys and ceramics. Also known as ytterbium oxide.