bn:01055777n
Noun Concept
Categories: long volume value, Periods in the periodic table
EN
period 6  Period 6 element  period 6 elements
EN
A period 6 element is one of the chemical elements in the sixth row of the periodic table of the chemical elements, including the lanthanides. Wikipedia
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EN
A period 6 element is one of the chemical elements in the sixth row of the periodic table of the chemical elements, including the lanthanides. Wikipedia
A period of the periodic table of elements Wikipedia Disambiguation
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