bn:01227930n
Noun Concept
Categories: Periods in the periodic table
EN
period 3 element  period 3  period 3 elements
EN
A period 3 element is one of the chemical elements in the third row of the periodic table of the chemical elements. Wikipedia
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EN
A period 3 element is one of the chemical elements in the third row of the periodic table of the chemical elements. Wikipedia
A row of the periodic table of elements Wikipedia Disambiguation
Third row of the periodic table Wikidata
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