Cyfnod y tabl cyfnodol (Q101843)

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rows in the periodic table having same number of electron shell. Saesneg
golygu
Language Label Description Also known as
Cymraeg
Cyfnod y tabl cyfnodol
Ni phenwyd unrhyw ddisgrifiad eto
    Saesneg
    period
    rows in the periodic table having same number of electron shell.

      Mynegiadau

      Identifiers

       
      golygu
      golygu
        golygu
          golygu
            golygu
              golygu
                golygu
                  golygu
                    golygu