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              • 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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