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