Element Groups Alkali metals Inert or Noble gases Alkali earths Halogens I He g Transition metals B C N F Ne Al Si P S Ci Ar Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr b Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te Xe Ba La Hf Ta W Re Os Ir Pt Au Hg TI Pb Bi Po At Rn Fr Ra Ac Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Lanthanides Actinides XIV-2H L i N a K R b C s F r B e M g C a S r B a R a S c Y L a A c T i Z r H f V N b T a C r M o W M n T c R e F e R u O s C o R h I r N i P d P t C u A g A u Z n C d H g B A l G a I n T l C S i G e S n P b N P A s S b B i O S S e T e P o F C l B r I A t H e N e A r K r X e R n C e P r N d P m S m E u G d T b D y H o E r T m Y b L u T h P a U N p P u A m C m B k C f E s F m M d N o L r Element Groups Alkali metals Transition metals Alkali earths Halogens Inert or Noble gases Lanthanides Actinides XIV-2