Polonyum 204

    #polonyum 204

    #copernicio

    #telurium

    #اوگانسون

    #zinc on the periodic table

    #periodic table

    #periodic table.com

    #hydrogen element

    #tin periodic table

    #carbon atomic number

    #helium atomic number

    #magnesium atomic number

    #bromine atomic number

    #tin atomic number

    #neptunium electron configuration

    #ra electron configuration

    #nd electron configuration

    #periodic table mn

    #radium electron configuration

    #bismuto

    #platino

    #titanio