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                        • WebElements Home WebElements

                          The periodic table of the elements

                          The periodic table is an arrangment of the chemical elements ordered by atomic number so that periodic properties of the elements (chemical periodicity) are made clear.

                          Explore binary compounds of the chemical elements through this periodic table

                          Group 1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
                          Period
                          1
                          1
                          1.008
                          Hydrogen
                          2
                          4.0026
                          Helium
                          2
                          3
                          6.94
                          Lithium
                          4
                          9.0122
                          Beryllium
                          5
                          10.81
                          Boron
                          6
                          12.011
                          Carbon
                          7
                          14.007
                          Nitrogen
                          8
                          15.999
                          Oxygen
                          9
                          18.998
                          Fluorine
                          10
                          20.180
                          Neon
                          3
                          11
                          22.990
                          Sodium
                          12
                          24.305
                          Magnesium
                          13
                          26.982
                          Aluminium
                          14
                          28.085
                          Silicon
                          15
                          30.974
                          Phosphorus
                          16
                          S
                          32.06
                          Sulfur
                          17
                          35.45
                          Chlorine
                          18
                          39.948
                          Argon
                          4
                          19
                          39.098
                          Potassium
                          20
                          40.078
                          Calcium
                          21
                          44.956
                          Scandium
                          22
                          47.867
                          Titanium
                          23
                          50.942
                          Vanadium
                          24
                          51.996
                          Chromium
                          25
                          54.938
                          Manganese
                          26
                          55.845
                          Iron
                          27
                          58.933
                          Cobalt
                          28
                          58.693
                          Nickel
                          29
                          63.546
                          Copper
                          30
                          65.38
                          Zinc
                          31
                          69.723
                          Gallium
                          32
                          72.630
                          Germanium
                          33
                          74.922
                          Arsenic
                          34
                          78.971
                          Selenium
                          35
                          79.904
                          Bromine
                          36
                          83.798
                          Krypton
                          5
                          37
                          85.468
                          Rubidium
                          38
                          87.62
                          Strontium
                          39
                          88.906
                          Yttrium
                          40
                          91.224
                          Zirconium
                          41
                          92.906
                          Niobium
                          42
                          95.95
                          Molybdenum
                          43
                          Tc
                          98
                          Technetium
                          44
                          101.07
                          Ruthenium
                          45
                          102.91
                          Rhodium
                          46
                          106.42
                          Palladium
                          47
                          107.87
                          Silver
                          48
                          112.41
                          Cadmium
                          49
                          114.82
                          Indium
                          50
                          118.71
                          Tin
                          51
                          121.76
                          Antimony
                          52
                          127.60
                          Tellurium
                          53
                          126.90
                          Iodine
                          54
                          131.29
                          Xenon
                          6
                          55
                          132.91
                          Caesium
                          56
                          137.33
                          Barium
                          *
                          71
                          174.97
                          Lutetium
                          72
                          178.49
                          Hafnium
                          73
                          180.95
                          Tantalum
                          74
                          183.84
                          Tungsten
                          75
                          186.21
                          Rhenium
                          76
                          190.23
                          Osmium
                          77
                          192.22
                          Iridium
                          78
                          195.08
                          Platinum
                          79
                          196.97
                          Gold
                          80
                          200.59
                          Mercury
                          81
                          204.38
                          Thallium
                          82
                          207.2
                          Lead
                          83
                          208.98
                          Bismuth
                          84
                          Po
                          209
                          Polonium
                          85
                          At
                          210
                          Astatine
                          86
                          Rn
                          222
                          Radon
                          7
                          87
                          Fr
                          223
                          Francium
                          88
                          Ra
                          226
                          Radium
                          **
                          103
                          Lr
                          262
                          Lawrencium
                          104
                          Rf
                          267
                          Rutherfordium
                          105
                          Db
                          270
                          Dubnium
                          106
                          Sg
                          269
                          Seaborgium
                          107
                          Bh
                          270
                          Bohrium
                          108
                          Hs
                          269
                          Hassium
                          109
                          Mt
                          278
                          Meitnerium
                          110
                          Ds
                          281
                          Darmstadtium
                          111
                          Rg
                          281
                          Roentgenium
                          112
                          Cn
                          285
                          Copernicium
                          113
                          Nh
                          286
                          Nihonium
                          114
                          Fl
                          289
                          Flerovium
                          115
                          Mc
                          289
                          Moscovium
                          116
                          Lv
                          293
                          Livermorium
                          117
                          Ts
                          293
                          Tennessine
                          118
                          Og
                          294
                          Oganesson
                           
                          *Lanthanoids *
                          57
                          138.91
                          Lanthanum
                          58
                          140.12
                          Cerium
                          59
                          140.91
                          Praseodymium
                          60
                          144.24
                          Neodymium
                          61
                          Pm
                          145
                          Promethium
                          62
                          150.36
                          Samarium
                          63
                          151.96
                          Europium
                          64
                          157.25
                          Gadolinium
                          65
                          158.93
                          Terbium
                          66
                          162.50
                          Dysprosium
                          67
                          164.93
                          Holmium
                          68
                          167.26
                          Erbium
                          69
                          168.93
                          Thulium
                          70
                          173.05
                          Ytterbium
                          **Actinoids **
                          89
                          Ac
                          227
                          Actinium
                          90
                          Th
                          232.04
                          Thorium
                          91
                          Pa
                          231.04
                          Protactinium
                          92
                          U
                          238.03
                          Uranium
                          93
                          Np
                          237
                          Neptunium
                          94
                          Pu
                          244
                          Plutonium
                          95
                          Am
                          243
                          Americium
                          96
                          Cm
                          247
                          Curium
                          97
                          Bk
                          247
                          Berkelium
                          98
                          Cf
                          251
                          Californium
                          99
                          Es
                          252
                          Einsteinium
                          100
                          Fm
                          257
                          Fermium
                          101
                          Md
                          258
                          Mendelevium
                          102
                          No
                          259
                          Nobelium

                          网络斗地主下载The standard form of the periodic table shown here includes periods (shown horizontally) and groups (shown vertically). The properties of elements in groups are similar in some respects to each other.

                          网络斗地主下载 There is no one single or best structure for the periodic table but by whatever consensus there is, the form used here is very useful and the most common. The periodic table is a masterpiece of organised chemical information and the evolution of chemistry's periodic table into the current form is an astonishing achievement.

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