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        1. WebElements Home WebElements
          web site. A classic book showing many forms of the periodic table in print is: Edward G. Mazurs, Periodic representations of the periodic system during one hundred years, University of Alabama Press USA, 2nd edition, 1974. ISBN: 0-8173-3200-6.

          Explore the chemical elements through this (standard) 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
          96.906
          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
          208.98
          Polonium
          85
          At
          209.99
          Astatine
          86
          Rn
          222.02
          Radon
          7
          87
          Fr
          223.02
          Francium
          88
          Ra
          226.03
          Radium
          **
          103
          Lr
          262.11
          Lawrencium
          104
          Rf
          267.12
          Rutherfordium
          105
          Db
          270.13
          Dubnium
          106
          Sg
          269.13
          Seaborgium
          107
          Bh
          270.13
          Bohrium
          108
          Hs
          269.13
          Hassium
          109
          Mt
          278.16
          Meitnerium
          110
          Ds
          281.17
          Darmstadtium
          111
          Rg
          281.17
          Roentgenium
          112
          Cn
          285.18
          Copernicium
          113
          Nh
          286.18
          Nihonium
          114
          Fl
          289.19
          Flerovium
          115
          Mc
          289.20
          Moscovium
          116
          Lv
          293.20
          Livermorium
          117
          Ts
          293.21
          Tennessine
          118
          Og
          294.21
          Oganesson
           
          *Lanthanoids *
          57
          138.91
          Lanthanum
          58
          140.12
          Cerium
          59
          140.91
          Praseodymium
          60
          144.24
          Neodymium
          61
          Pm
          144.91
          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
          227.03
          Actinium
          90
          Th
          232.04
          Thorium
          91
          Pa
          231.04
          Protactinium
          92
          U
          238.03
          Uranium
          93
          Np
          237.05
          Neptunium
          94
          Pu
          244.06
          Plutonium
          95
          Am
          243.06
          Americium
          96
          Cm
          247.07
          Curium
          97
          Bk
          247.07
          Berkelium
          98
          Cf
          251.08
          Californium
          99
          Es
          252.08
          Einsteinium
          100
          Fm
          257.10
          Fermium
          101
          Md
          258.10
          Mendelevium
          102
          No
          259.10
          Nobelium

          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.

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