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actinon
[ ak-tuh-non ]
/ ˈæk təˌnɒn /
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noun Chemistry.
a chemically inert, gaseous, short-lived isotope of radon that is a member of the actinium series. Symbol: An; atomic number: 86; atomic weight: 219.
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Also called actinium emanation.
Words nearby actinon
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
British Dictionary definitions for actinon
actinon
/ (ˈæktɪˌnɒn) /
noun
a radioisotope of radon that is a decay product of radium. Symbol: An or 219 Rn; atomic no: 86; half-life: 3.92s
another name for actinide
Word Origin for actinon
C20: New Latin, from actinium + -on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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