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Period 8 element
Introduction
A period 8 element is one of the chemical elements in the eighth row (or period) of the periodic table of the elements. None of these elements has yet been created. They may be referred to using IUPAC systematic element names.
ar:عناصر الدورة الثامنة de:Periode-8-Element it:Elementi del periodo 8 sk:8. perióda th:ธาตุคาบ 8