PERIODIC TABLE OF ELEMENTS
   
   
   
Mouse over elements for information Click an element for the element page
 
 
I A
VIII B
1 1 H Hydrogen 1.00794
II A
III B
IV B
V B
VI B
VII B
2 He Helium 4.0026
2 3LiLithium 6.941 4BeBeryllium 9.012182 5B Boron 10.811 6C Carbon 12.011 7N Nitrogen 14.00674 8O Oxygen 15.9994 9F Fluorine 18.9984 10NeNeon 20.1797
3 11NaSodium 22.98977 12MgMagnesium 24.305
III A
IV A
V A
VI A
VII A
VIII A
I B
II B
13AlAluminum 26.981539 14SiSilicon 28.0855 15P Phosphorus 30.973762 16S Sulfur 32.066 17 Cl Chlorine 35.4527 18 Ar Argon 39.948
4 19 K Potassium 39.0983 20 Ca Calcium 40.078 21 Sc Scandium 44.9559 22 Ti Titanium 47.88 23 V Vanadium 50.9415 24 Cr Chromium 51.9961 25 Mn Manganese 54.93805 26 Fe   Iron   55.847 27 Co Cobalt 58.9332 28 Ni Nickel 58.6934 29 Cu Copper 63.546 30 Zn Zinc 65.390 31 Ga Gallium 69.723 32 Ge Germanium 72.61 33 As Arsenic 74.92159 34 Se Selenium 78.96 35 Br Bromine 79.904 36 Kr Krypton 83.8
5 37 Rb Rubidium 85.4678 38 Sr Strontium 87.62 39 Y Yttrium 88.90585 40 Zr Zirconium 91.224 41 Nb Niobium 92.90638 42 Mo Molybden. 95.94 43 Tc Technetium (98) 44 Ru Ruthenium 101.07 45 Rh Rhodium 102.9055 46 Pd Palladium 106.42 47 Ag Silver 107.8682 48 Cd Cadmium 112.411 49 In Indium 114.818 50 Sn   Tin   118.71 51 Sb Antimony 121.757 52 Te Tellurium 127.6 53 I Iodine 126.90447 54 Xe Xenon 131.29
6 55 Cs Caesium 132.90543 56 Ba Barium 137.327 57-71 72 Hf Hafnium 178.49 73 Ta Tantalum 108.9479 74 W Tungsten 183.84 75 Re Rhenium 186.207 76 Os Osmium 190.23 77 Ir Iridium 192.22 78 Pt Platinum 195.08 79 Au Gold 196.96654 80 Hg Mercury 200.59 81 Ti Thallium 204.3833 82 Pb Lead 207.2 83 Bi Bismuth 208.98038 84 Po Polonium 208.9824 85 At Astatine 209.9871 86 Rn Radon 222.0176
7 87 Fr Francium 223.0197 88 Ra Radium 226.0254 89-103 104 Rf Rutherford. 261.1089 105 Db Dubnium 262.1144 106 Sg Seaborgium 263.1186 107 Bh mBohrium 262.1231 108 Hs Hassium 265.1306 109 Mt Meitnerium 266.1378 110 Ds Darmstadt. (269) 111 Rg Roentgeniu. (272) 112 Uub Ununbium (285) 113 Uut Ununtrium (284) 114 Uuq Ununquad. (289) 115 Uup Ununpenti. (289) 116 Uuh Ununhexiu. (292) 117 Uus Ununsepti. (292.2076) 118 Uuo Ununoctium (293.2147)
   
  Lanthanides 57 La Lanthan. 138.9055 58 Ce Cerium 140.115 59 Pr Praseody. 140.90765 60 Nd Neodymiu. 144.24 61 Pm Promethiu. (144.9127) 62 Sm Samarium 150.36 63 Eu Europium 151.965 64 Gd Gadolinium 157.25 65 Tb Terbium 158.92534 66 Dy Dysprosiu. 162.5 67 Ho Holmium 164.93032 68 Er Erbium 167.26 69 Tm Thulium 168.93421 70 Yb Ytterbium 173.04 71 Lu Lutetium 174.967
  Actinides 89 Ac Actinium 227.0278 90 Th Thorium 232.0381 91 Pa Protactium 231.03588 92 U Uranium 238.0289 93 Np Neptunium 237.0482 94 Pu Plutonium 244.0642 95 Am Americium 243.0614 96 Cm Curium 247.0703 97 Bk Berkelium 247.0703 98 Cf Californium 251.0796 99 Es Einsteinium 252.083 100 Fm Fermium 257.0951 101 Md Mendelevi. 258.0984 102 No Nobelium 259.1011 103 Lr Lawrencium 262.1098
 
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 (0°C and 1 atm) Natural Occurrence
Gases Liquids Solids
Undiscovered Synthetic From Decay Primordial