what element is the atomic symbol na
Rare earth metal that proved to be a mixture of the elements holmium and samarium. Rf: Rutherfordium: 106 Proposed name for seaborgium. The symbol and name were instead used for element 104. Sa: Samarium: 62 Current symbol is Sm. So: Sodium: 11 Current symbol is Na. Sp: Spectrium: 70 Suggested name for ytterbium. St: Antimony: 51 Current symbol is Sb. Tn