Periodic_Table

A listing of the different elements, arranged by electronic structure so that many chemical properties vary regularly across the table. With horizontal and vertical reversed from the normal orientation:

Period

1 2 3 4 5 6 7

Group

H Li Na K Rb Cs Fr 1 (IA)

Be Mg Ca Sr Ba Ra 2 (IIA)

La Ac

Ce Th

Pr Pa

Nd U

Pm Np

Sm Pu

Eu Am

Gd Cm

Tb Bk

Dy Cf

Ho Es

Er Fm :

Tm Md :

Yb No :

Sc Y Lu Lr 3 (IIIB)

Ti Zr Hf Unq 4 (IVB)

V Nb Ta Unp 5 (VB)

Cr Mo W Unh 6 (VIB)

Mn Tc Re Uns 7 (VIIB)

Fe Ru Os Uno 8 (VIIIB)

Co Rh Ir Une 9 (VIIIB)

Ni Pd Pt 10 (VIIIB)

Cu Ag Au 11 (IB)

Zn Cd Hg 12 (IIB)

B Al Ga In Tl 13 (IIIA)

C Si Ge Sn Pb 14 (IVA)

N P As Sb Bi 15 (VA)

O S Se Te Po 16 (VIA)

F Cl Br I At 17 (VIIA)

He Ne Ar Kr Xe Rn 18 (VIIIA)