Zyra International NET //// Zyra (uk) //// CATEGORIES //// Periodic Table //// site index

Also see ELEMENTS OF THE PERIODIC TABLE


EXTENDED PERIODIC CLASSIFICATION

or EXTENDED PERIODIC TABLE of elements


H He
LiBe BCNOFNe
NaMg AlSiPSClAr
KCaSc  Ti VCrMnFeCoNiCuZn GaGeAsSe Br Kr
RbSrY  Zr NbMoTcRuRhPdAgCdInSnSbTe IXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLu  Hf TaWReOs IrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr  Rf  Db  Sg  Bh  Hs  Mt  Ds  Rg  UubUutUuqUupLv UusUuo
UueUbnUbuUbbUbtUbqUbpUbhUbsUboUbeUbeUtnUtu

This is what happens to the Periodic Table when the Lanthanides and Actinides are slotted into place. Chemical charts on walls seldom do this because it would take a whole width of paper, and the heavy elements involved aren't so easy to get for chemical experimentation.

Although some additional discoveries of superheavy elements in the Island of Stability have been made, there are serious problems with the stability of such stuff. For example, the element under Radon, which should be an inert gas, or at least an inert liquid/solid, element 118 Ununoctium, proved to have a half-life of only a few milliseconds, and only three atoms of it have ever been found (up until 2009).