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Adhesion of a species onto the surfaces of particles.

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Lanthanide Contraction

A decrease in the radii of the elements following the lanthanides compared to what would be expected if there were no f-transition metals.

Molecular Formula

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

Daughter Nuclide

Nuclide that is produced in a nuclear decay.

 

Alkynes

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

Dubnium

Discovered : at both Berkeley, California, USA, and Dubna, near Moscow, Russia in 1970. Description:A highly radioactive metal which does not occur naturally, and of which only a few atoms have ever been made. It is of research interest only. Origin:The element is named after the Russian town of Dubna.

Halogens

Group VIIA elements: F, Cl, Br, I

Optical Activity

The rotation of plane polarized light by one of a pair of optical isomers.

 

ytterbia

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

Electrophoresis

A technique for separation of ions by rate and direction of migration in an electric field.

Double Bond

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