actinium-K
Synonym of franciumSynonym of francium.
Meaning
1 senses(historical, obsolete, uncountable)Synonym of francium.
Origin
From the former practice of naming the steps in a decay chain sequential letters. FranciumFrom the former practice of naming the steps in a decay chain sequential letters. Francium was first identified in the naturally occurring actinium series.
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Synonyms
1 synonymsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable