Tl Tm Te T
Ar U W Sb
Y Yb V W
Zr Zn W K
Antoine Lavoisier Jöns Jakob Berzelius Johan Gottlieb Gahn John Dalton
K W Z V
Sn Au Zn Zr
Nikolai Yakovlevich Demyanov Alexander Borodin Boris Petrovich Nikolsky Dmitri Mendelev
K Yb Zr Y
Xe Zn Au Sn