Group

1

2

 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Period

 

1


H

 


He

2


Li


Be

 


B


C


N


O


F


Ne

3


Na


Mg

 


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


Ds


Rg


Uub


Uut


Uuq


Uup


Uuh


Uus


Uuo

 

 

*Lanthanoids

*


La


Ce


Pr


Nd


Pm


Sm


Eu


Gd


Tb


Dy


Ho


Er


Tm


Yb

 

 

**Actinoids

**


Ac


Th


Pa


U


Np


Pu


Am


Cm


Bk


Cf


Es


Fm


Md


No

 

 

 

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Updated 13 August 2008