actinide

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Related to Actinide elements: actinide series
  • noun

Synonyms for actinide

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

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References in periodicals archive ?
It's the first-ever compound containing both a noble gas and one of the periodic table's so-called actinide elements.
Several years later theorists predicted that lighter elements, such as dysprosium and other rare earths, could also assume a relatively stable, superdeformed shape if they were rapidly rotated; the rotational energy would play the same role as Coloumb interactions in the actinide elements.