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Actinon

see synonyms of actinon

Noun

1. actinide, actinoid, actinon

any of a series of radioactive elements with atomic numbers 89 through 103

WordNet Lexical Database for English. Princeton University. 2010.

Actinon

see synonyms of actinon
noun
1. 
a radioisotope of radon that is a decay product of radium. Symbol: An or 219Rn; atomic no: 86; half-life: 3.92s
2.  another name for actinide

Collins English Dictionary. Copyright © HarperCollins Publishers

Actinon

see synonyms of actinon
noun
a gaseous radioisotope of radon, formed by disintegration of actinium: at. no., 86; at. wt., 219; half-life of 3.92 seconds

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Actinon

see synonyms of actinon
n.
A radioactive isotope of radon with mass number 219, having a half-life of 3.96 seconds and produced by the disintegration of actinium.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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