actinium series
actinium series, set of unstable heavy nuclei constituting one of the four radioactive series.
This article was most recently revised and updated by Erik Gregersen.
Citation Information
Article Title:
actinium series
Website Name:
Encyclopaedia Britannica
Publisher:
Encyclopaedia Britannica, Inc.
Date Published:
01 April 2010
Access Date:
November 14, 2026