1A
(1)
8A
(18)
1 H 2A
(2)
Periodic Table of the Elements 3A
(13)
4A
(14)
5A
(15)
6A
(16)
7A
(17)
He
2 Li Be B C N O F Ne
3 Na Mg 3B
(3)
4B
(4)
5B
(5)
6B
(6)
7B
(7)
8B
(8)
9B
(9)
10B
(10)
11B
(11)
12B
(12)
Al Si P S Cl Ar
4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
6 Cs Ba Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
7 Fr Ra Lr Rf Db Sg Bh Hs Mt Uun Uuu Uub Uut Uuq Uup Uuh Uus Uuo

Lanthanides La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb
Actinides Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No

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