Question
Tue May 24, 2011 By: Pallavi Priya

why are lanthanides and actinides renamed as lanthanoids and actinoids

Expert Reply
Tue May 24, 2011
The International Union of Pure and Applied Chemistry (IUPAC) currently recommends using the names lanthanoid and actinoid, rather than the earlier terms lanthanide and actinide, because the suffix "-ide" is generally used for anions.
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