Hydrogen
Hydrogenium
Henry Cavendish in 1766
Gas
1
1
0
Helium
Helium
Joseph Norman Lockyer in 1868
Gas
2
2
2
Lithium
Lithium
Johan August Arfwedson in 1817
Solid
3
3
4
Beryllium
Beryllium
Loius-Nicolas Vauquelin in 1798
Solid
4
4
5
Boron
Borum
Humphry Davy in 1808
Solid
5
5
6
Carbon
Carbonium
Antoine Laurent de Lavoisier in 3750 BC
Solid
6
6
6
Nitrogen
Nitrogenium
Daniel Lutherford in 1772
Gas
7
7
7
Oxygen
Oxygenium
Joseph Priestley in 1766
Gas
8
8
8
Fluorine
Fluorum
Ferdinand Fredrich Henri Moissan
in 1810
Gas
9
9
10
Neon
Neon
Sir William Ramsey in 1898
Gas
10
10
10
Sodium
Natrium
Humphry Davy in 1807
Solid
11
11
12
Magnesium
Magnesium
Humphry Davy in 1755
Solid
12
12
12
Aluminum
Aluminum
Hans Christian ∅rsted in 1825
Solid
13
13
14
Silicon
Silicium
Jons Jakob Berzelius in 1823
Solid
14
14
14
Phosphorus
Phosphorus
Hennig Brand in 1669
Solid
15
15
16
Sulfur
Sulphuris
Unknown
in 2000 BC
Solid
16
16
16
Chlorine
Chlorum
Carl Wihelm Scheele in 1774
Solid
17
17
18
Argon
Argon
Sir William Ramsey in 1766
Gas
18
18
18
Potassium
Kalium
Humphry Davy in 1807
Solid
19
19
20
Calcium
Calcium
Humphry Davy in 1808
Solid
20
20
20
Scandium
Scandium
Lars Fredrik Nilson in 1879
Solid
21
21
21
Titanium
Tiranium
William Grigor in 1791
Solid
22
22
26
Vanadium
Vanadium
Andres Manuel del Rio in 1801
Solid
23
23
28
Chromium
Chromium
Loius-Nicolas Vauquelin in 1794
Solid
24
24
28
Maganese
Maganum
Ignatius Gottfried Kaim in 1774
Solid
25
25
30
Iron
Ferrum
Unknown
in 5000 BC
Solid
26
26
30
Cobalt
Cobaltum
Georg Brandt in 1735
Solid
27
27
32
Nickel
Nickolum
Axel Frederic von Cronstedt in 1751
Solid
28
28
31
Copper
Cuprum
Unknown
in 9000 BC
Solid
29
29
35
Zinc
Zincum
Andreas Sigismund Marggraf in 1000 BC
Solid
30
30
35
Gallium
Gallium
Paul Emile Lecoq de Boisbandran in 1875
Solid
31
31
39
Germanium
Germanium
Clemens Alexander Winkler in 1886
Solid
32
32
41
Selenium
Selenium
Jöns Jakob Berzelius in 1817
Solid
34
34
45
Bromine
Bromum
Karl Jakob Leuwich in 1826
Liquid
35
35
45
Krypton
Krypton
Sir William Ramsey in 1898
Gas
36
36
48
Rubidium
Rubidium
Robert Wilhelm Bunsen in 1861
Solid
37
37
48
Strontium
Strontium
Adair Crawford in 1787
Solid
38
38
50
Strontium
Strontium
William Cruickshank in 1790
Solid
38
38
50
Yttrium
Yttrium
Jöns Jacob Berzelius in 1794
Solid
39
39
50
Zirconium
Zirconium
Martin Heinrich Klaproth in 1789
Solid
40
40
51
Niobium
Niobium
Charles Hatchett in 1801
Solid
41
41
52
Molybdenum
Molybdenum
Carl Wilhelm Scheele in 1778
Solid
42
42
54
Technetium
Technetium
Glenn T. Seaborg, Arthur C. Wahl, and others in 1937
Solid
43
43
55
Ruthenium
Ruthenium
Karl Ernst Claus in 1844
Solid
44
44
57
Rhodium
Rhodium
William Hyde Wollaston in 1803
Solid
45
45
58
Palladium
Palladium
William Hyde Wollaston in 1803
Solid
46
46
60
Silver
Argentum
Known to ancient civilizations (no single discoverer)
Solid
47
47
61
Cadmium
Cadmium
Friedrich Stromeyer in 1817
Solid
48
48
64
Indium
Indium
Ferdinand Reich and Theodor Richter in 1863
Solid
49
49
66
Tin
Stannum
Known to ancient civilizations (no single discoverer)
Solid
50
50
69
Antimony
Antimonium
Known to ancient civilizations (no single discoverer)
Solid
51
51
70
Tellurium
Tellurium
Martin Heinrich Klaproth in 1782
Solid
52
52
76
Iodine
Iodum
Bernard Courtois in 1811
Solid
53
53
74
Xenon
Xenon
William Ramsay and Morris Travers in 1898
Gas
54
54
77
Caesium
Caesium
Robert Bunsen and Gustav Kirchhoff in 1860
Solid
55
55
78
Barium
Barium
Carl Wilhelm Scheele in 1772
Solid
56
56
81
Lanthanum
Lanthanum
Carl Gustaf Mosander in 1839
Solid
57
57
82
Cerium
Cerium
Martin Heinrich Klaproth and Jöns Jacob Berzelius in 1803
Solid
58
58
82
Praseodymium
Praseodymium
Carl Auer von Welsbach in 1885
Solid
59
59
82
Neodymium
Neodymium
Carl Auer von Welsbach in 1885
Solid
60
60
84
Promethium
Promethium
J. A. Marinsky, L. E. Glendenin, and C. D. Coryell in 1945
Solid
61
61
84
Samarium
Samarium
Paul Émile Lecoq de Boisbaudran in 1853
Solid
62
62
88
Europium
Europium
Eugène-Anatole Demarçay in 1896
Solid
63
63
91
Gadolinium
Gadolinium
Jean Charles Galissard de Marignac in 1880
Solid
64
64
97
Terbium
Terbium
Carl Gustaf Mosander in 1843
Solid
65
65
99
Dysprosium
Dysprosium
Paul-Émile Lecoq de Boisbaudran in 1886
Solid
66
66
100
Holmium
Holmium
Per Teodor Cleve in 1879
Solid
67
67
103
Erbium
Erbium
Carl Gustaf Mosander in 1843
Solid
68
68
102
Thulium
Thulium
Per Teodor Cleve in 1879
Solid
69
69
105
Ytterbium
Ytterbium
Carl Gustaf Mosander in 1843
Solid
70
70
106
Lutetium
Lutetium
Georges Urbain, Carl Auer von Welsbach, and Charles James in 1907
Solid
71
71
106
Hafnium
Hafnium
Niels Bohr and others in 1923
Solid
72
72
108
Tantalum
Tantalum
Charles Hatchett in 1802
Solid
73
73
108
Wolfram
Wolframium
Carl Wilhelm Scheele in 1778
Solid
74
74
110
Rhenium
Rhenium
Mikhail Tsvet in 1925
Solid
75
75
111
Osmium
Osmium
Smithson Tennant in 1803
Solid
76
76
114
Iridium
Iridium
Smithson Tennant in 1803
Solid
77
77
116
Platinum
Platinum
Antonio de Ulloa in 1735
Solid
78
78
117
Gold
Aurum
Known to ancient civilizations (no single discoverer)
Solid
79
79
118
Mercury
Hydrargyrum
Known to ancient civilizations (no single discoverer)
Liquid
80
80
121
Thallium
Thallium
William Crookes in 1861
Solid
81
81
123
Lead
Plumbum
Known to ancient civilizations (no single discoverer)
Solid
82
82
125
Bismuth
Bismuthum
Known to ancient civilizations (no single discoverer)
Solid
83
83
126
Polonium
Polonium
Marie Curie and Pierre Curie in 1898
Solid
84
84
125
Astatine
Astatine
Dale R. Corson, Kenneth Ross MacKenzie, and Emilio Segrè in 1940
Solid
85
85
125
Radon
Radon
Frederick Dorn in 1899
Gas
86
86
136
Francium
Francium
Marguerite Perey in 1939
Solid
87
87
138
Radium
Radium
Marie Curie and Pierre Curie in 1898
Solid
88
88
138
Actinium
Actinium
Friedrich Oskar Giesel in 1899
Solid
89
89
138
Thorium
Thorium
Jöns Jakob Berzelius in 1828
Solid
90
90
142
Protactinium
Protactinium
Otto Hahn and Lise Meitner in 1899
Solid
91
91
143
Uranium
Uranium
Martin Heinrich Klaproth in 1789
Solid
92
92
146
Neptunium
Neptunium
Glenn T. Seaborg, Arthur C. Wahl, and others in 1940
Solid
93
93
144
Plutonium
Plutonium
Glenn T. Seaborg, Joseph W. Kennedy, and others in 1940
Solid
94
94
150
Americium
Americium
Glenn T. Seaborg, Ralph A. James, and others in 1944
Solid
95
95
151
Curium
Curium
Glenn T. Seaborg, Albert Ghiorso, and others in 1944
Solid
96
96
151
Berkelium
Berkelium
Glenn T. Seaborg, Albert Ghiorso, and Glenn R. Choppin in 1949
Solid
97
97
153
Californium
Californium
Glenn T. Seaborg, Albert Ghiorso, and Glenn R. Choppin in 1950
Solid
98
98
153
Einsteinium
Einsteinium
Albert Ghiorso, Glenn T. Seaborg, and others in 1952
Solid
99
99
153
Fermium
Fermium
Albert Ghiorso, Glenn T. Seaborg, and others in 1952
Solid
100
100
157
Mendelevium
Mendelevium
Albert Ghiorso, Glenn T. Seaborg, and others in 1955
Solid
101
101
157
Nobelium
Nobelium
Albert Ghiorso, Glenn T. Seaborg, and others in 1958
Solid
102
102
159
Lawrencium
Lawrencium
Albert Ghiorso, Glenn T. Seaborg, and others in 1961
Solid
103
103
157
Rutherfordium
Rutherfordium
Joint Institute for Nuclear Research in 1964
Solid
104
104
157
Dubnium
Dubnium
Joint Institute for Nuclear Research and Lawrence Berkeley National
Laboratory in 1970
Solid
105
105
162
Seaborgium
Seaborgium
Lawrence Berkeley National Laboratory in 1974
Solid
106
106
163
Bohrium
Bohrium
Joint Institute for Nuclear Research in 1987
Solid
107
107
162
Hassium
Hassium
GSI Helmholtz Centre for Heavy Ion Research in 1984
Solid
108
108
165
Meitnerium
Meitnerium
GSI Helmholtz Centre for Heavy Ion Research in 1982
Solid
109
109
166
Darmstadtium
Darmstadtium
GSI Helmholtz Centre for Heavy Ion Research in 1994
Solid
110
110
169
Roentgenium
Roentgenium
GSI Helmholtz Centre for Heavy Ion Research in 1994
Solid
111
111
169
Copernicium
Copernicium
GSI Helmholtz Centre for Heavy Ion Research in 1996
Solid
112
112
173
Nihonium
Nihonium
RIKEN in Japan in 2004
Solid
113
113
173
Flerovium
Flerovium
Joint Institute for Nuclear Research in 1998
Solid
114
114
175
Moscovium
Moscovium
Joint Institute for Nuclear Research in 2004
Solid
115
115
177
Livermorium
Livermorium
Lawrence Livermore National Laboratory in 2000
Solid
116
116
177
Tennessine
Tennessine
Joint Institute for Nuclear Research in 2010
Solid
117
117
177
Oganesson
Oganesson
Joint Institute for Nuclear Research in 2002
Gas
118
118
176
Ununennium
Ununennium
Joint Institute for Nuclear Research in 2006
Liquid
119
119
197
Unbinilium
Unbinilium
Joint Institute for Nuclear Research in 2006-2008
Unknown
120
120
200
Unbiunium
Unbiunium
Unknown
Unknown
121
121
199
Unbibium
Unbibium
Unknown in 2008
Unknown
122
122
199
Unbitrium
Unbitrium
Unknown in 2013
Unknown
123
123
202
Unbiquadium
Unbiquadium
Unknown in 2006
Unknown
124
124
206
Unbipentium
Unbipentium
Unknown in 2010
Unknown
125
125
207
Unbihexium
Unbihexium
Unknown in Unknown
Unknown
126
126
208
Unbiseptium
Unbiseptium
Unknown in Unknown
Unknown
127
127
209