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Periodic table

Periodic table

Published:
Updated: October 24, 2011, 7:33 am
This article has been reviewed by the following Topic Editor: Peter Saundry

 

Group → 1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period ↓  
1 1
H		   2
He
2 3
Li		 4
Be		   5
B		 6
C		 7
N		 8
O		 9
F		 10
Ne
3 11
Na		 12
Mg		   13
Al 		14
Si		 15
P 		16
S 		17
Cl		 18
Ar
4 19
K		 20
Ca 		  21
Sc		 22
Ti		 23
V		 24
Cr		 25
Mn		 26
Fe		 27
Co		 28
Ni		 29
Cu		 30
Zn		 31
Ga		 32
Ge		 33
As		 34
Se		 35
Br		 36
Kr
5 37
Rb		 38
Sr		   39
Y		 40
Zr		 41
Nb		 42
Mo		 43
Tc		 44
Ru		 45
Rh		 46
Pd		 47
Ag		 48
Cd		 49
In		 50
Sn		 51
Sb		 52
Te		 53
I		 54
Xe
6 55
Cs		 56
Ba		 * 71
Lu		 72
Hf		 73
Ta		 74
W		 75
Re		 76
Os		 77
Ir		 78
Pt		 79
Au		 80
Hg		 81
Tl		 82
Pb		 83
Bi		 84
Po		 85
At		 86
Rn
7 87
 Fr		 88
Ra		 ** 103
Lr		 104
Rf		 105
Db		 106
Sg		 107
Bh		 108
Hs		 109
Mt		 110
Ds		 111
Uuu		 112
Uub		   114
Uuq		   116
Uuh		   118
Uuo
 
* Lanthanides 57
La		 58
Ce		 59
Pr		 60
Nd		 61
Pm		 62
Sm		 63
Eu		 64
Gd		 65
Tb		 66
Dy		 67
Ho		 68
Er		 69
Tm		 70
Yb
** Actinides 89
Ac		 90
Th		 91
Pa		 92
U		 93
Np		 94
Pu		 95
Am		 96
Cm		 97
Bk		 98
Cf		 99
Es		 100
Fm		 101
Md		 102
No


 

Chemical Series of the Periodic Table
Alkali metals Alkaline earth metals Lanthanides Actinides Transition metals
Poor metals Metalloids Nonmetals Halogens Noble gases

State at standard temperature and pressure

  • those in blue are gases
  • those in green are liquids
  • those in black are solid

Radioactivity

  • those with soild borders have stable isotopes (Primordial elements)
  • those with dashed borders have only radioactive naturally occurring isotopes
  • those with dotted borders do not occur naturally (Synthetic Elements)
  • those without borders are too radioactive to have been discovered yet

Citation

Ida Kubiszewski PhD (Lead Author);Peter Saundry (Topic Editor) "Periodic table". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth October 5, 2006; Last revised Date October 24, 2011; Retrieved May 21, 2013 <http://www.eoearth.org/article/Periodic_table>

The Author

Ida Kubiszewski Stewardship Committee The Encyclopedia of Earth   Dr. Ida Kubiszewski is a Senior Lecturer at the Crawford School of Public Policy at Australian National University.  She is also a co-founder and former-Managing Editor the Encyclopedia of Earth.  Dr. Kubiszewki is currently working as the Managing Editor for a magazine/journal hybrid called Solutions.  Solutions is an outlet for discussions focusing on solutions to the complex problems we are now facing in ... (Full Bio)

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