List of 188 Chemical Elements

This the list of 118 chemical elements which have been identified as of 2019. A chemical element, often simply called an element, is a species of atoms which all have the same number of protons in their atomic nuclei (i.e., the same atomic number, or Z).

The most popular visualization of all 118 elements is the periodic table of the elements, a convenient tabular arrangement of the elements by their chemical properties that uses abbreviated chemical symbols in place of full element names, but the simpler list format presented here may also be useful. Like the periodic table, the list below organizes the elements by the number of protons in their atoms.

List of 118 Chemical Elements

List of 118 Chemical Elements

Z

Symbol

Element

Atomic weight

1 H Hydrogen 1.008
2 He Helium 4.002602(2)
3 Li Lithium 6.94
4 Be Beryllium 9.0121831(5)
5 B Boron 10.81
6 C Carbon 12.011
7 N Nitrogen 14.007
8 O Oxygen 15.999
9 F Fluorine 18.998403163(6)
10 Ne Neon 20.1797(6)
11 Na Sodium 22.98976928(2)
12 Mg Magnesium 24.305
13 Al Aluminium 26.9815384(3)
14 Si Silicon 28.085
15 P Phosphorus 30.973761998(5)
16 S Sulfur 32.06
17 Cl Chlorine 35.45
18 Ar Argon 39.948
19 K Potassium 39.0983(1)
20 Ca Calcium 40.078(4)
21 Sc Scandium 44.955908(5)
22 Ti Titanium 47.867(1)
23 V Vanadium 50.9415(1)
24 Cr Chromium 51.9961(6)
25 Mn Manganese 54.938043(2)
26 Fe Iron 55.845(2)
27 Co Cobalt 58.933194(3)
28 Ni Nickel 58.6934(4)
29 Cu Copper 63.546
30 Zn Zinc 65.38(2)
31 Ga Gallium 69.723(1)
32 Ge Germanium 72.630(8)
33 As Arsenic 74.921595(6)
34 Se Selenium 78.971(8)
35 Br Bromine 79.904
36 Kr Krypton 83.798(2)
37 Rb Rubidium 85.4678(3)
38 Sr Strontium 87.62(1)
39 Y Yttrium 88.90584(1)
40 Zr Zirconium 91.224(2)
41 Nb Niobium 92.90637(1)
42 Mo Molybdenum 95.95(1)
43 Tc Technetium [98]
44 Ru Ruthenium 101.07(2)
45 Rh Rhodium 102.90549(2)
46 Pd Palladium 106.42(1)
47 Ag Silver 107.8682(2)
48 Cd Cadmium 112.414(4)
49 In Indium 114.818(1)
50 Sn Tin 118.710(7)
51 Sb Antimony 121.760(1)
52 Te Tellurium 127.60(3)
53 I Iodine 126.90447(3)
54 Xe Xenon 131.293(6)
55 Cs Caesium 132.90545196(6)
56 Ba Barium 137.327(7)
57 La Lanthanum 138.90547(7)
58 Ce Cerium 140.116(1)
59 Pr Praseodymium 140.90766(1)
60 Nd Neodymium 144.242(3)
61 Pm Promethium [145]
62 Sm Samarium 150.36(2)
63 Eu Europium 151.964(1)
64 Gd Gadolinium 157.25(3)
65 Tb Terbium 158.925354(8)
66 Dy Dysprosium 162.500(1)
67 Ho Holmium 164.930328(7)
68 Er Erbium 167.259(3)
69 Tm Thulium 168.934218(6)
70 Yb Ytterbium 173.045(10)
71 Lu Lutetium 174.9668(1)
72 Hf Hafnium 178.49(2)
73 Ta Tantalum 180.94788(2)
74 W Tungsten 183.84(1)
75 Re Rhenium 186.207(1)
76 Os Osmium 190.23(3)
77 Ir Iridium 192.217(2)
78 Pt Platinum 195.084(9)
79 Au Gold 196.966570(4)
80 Hg Mercury 200.592(3)
81 Tl Thallium 204.38
82 Pb Lead 207.2(1)
83 Bi Bismuth 208.98040(1)
84 Po Polonium [209]
85 At Astatine [210]
86 Rn Radon [222]
87 Fr Francium [223]
88 Ra Radium [226]
89 Ac Actinium [227]
90 Th Thorium 232.0377(4)
91 Pa Protactinium 231.03588(1)
92 U Uranium 238.02891(3)
93 Np Neptunium [237]
94 Pu Plutonium [244]
95 Am Americium [243]
96 Cm Curium [247]
97 Bk Berkelium [247]
98 Cf Californium [251]
99 Es Einsteinium [252]
100 Fm Fermium [257]
101 Md Mendelevium [258]
102 No Nobelium [259]
103 Lr Lawrencium [266]
104 Rf Rutherfordium [267]
105 Db Dubnium [268]
106 Sg Seaborgium [269]
107 Bh Bohrium [270]
108 Hs Hassium [270]
109 Mt Meitnerium [278]
110 Ds Darmstadtium [281]
111 Rg Roentgenium [282]
112 Cn Copernicium [285]
113 Nh Nihonium [286]
114 Fl Flerovium [289]
115 Mc Moscovium [290]
116 Lv Livermorium [293]
117 Ts Tennessine [294]
118 Og Oganesson [294]