actinon


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Related to actinon: radium emanation

ac·ti·non

 (ăk′tə-nŏn′)
n.
A radioactive isotope of radon, Rn-219, having a half-life of 3.96 seconds and produced by the disintegration of actinium.

actinon

(ˈæktɪˌnɒn)
n
1. (Elements & Compounds) a radioisotope of radon that is a decay product of radium. Symbol: An or 219Rn; atomic no: 86; half-life: 3.92s
2. (Elements & Compounds) another name for actinide
[C20: New Latin, from actinium + -on]

ac•ti•non

(ˈæk təˌnɒn)

n.
a chemically inert, gaseous, short-lived isotope of radon. Symbol: An; at. no.: 86; at. wt.: 219.
[1925–30]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinon - any of a series of radioactive elements with atomic numbers 89 through 103actinon - any of a series of radioactive elements with atomic numbers 89 through 103
group, grouping - any number of entities (members) considered as a unit