Question

Elements with atomic numbers higher than 92 are sometimes described as ______ ? A) Actinides B) Noble gases C) Halogens D) Alkaline metals

Answer 1

Elements with atomic numbers higher than 92 are sometimes described as Actinides. The actinide series is a group of elements in the periodic table that includes all the elements with atomic numbers from 89 to 103. These elements are characterized by the filling of the 5f electron shell and are located below the lanthanide series.

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