Zn Ni Pt
Na Mg K
Cr Ca Ba
Al Sn Pb
Fe Ag Au
W Cu Hg
Ti Mn Ga
In Po Tl
platina nikkel zink
kalium magnesium natrium
barium calcium chroom
lood tin aluminium
goud zilver ijzer
kwik koper wolfraam
gallium mangaan titanium
thallium polonium indium