actinium emanation


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

ac·tin·i·um em·a·na·tion

radon-219. See: emanon.

actinium emanation

A radioisotope associated with actinium identified in 1904, which has a half-life of 3.96 seconds and correspond to 219Rn.

actinium emanation

The radioactive gas given off by actinium; a radioactive isotope of actinium. Synonym: actinon
See also: emanation
Mentioned in ?