Atomic Names and Symbols

1A 2A 3A 4A 5A 6A 7A 8A
(1) (2) (13) (14) (15) (16) (17) (18)
3B 4B 5B 6B 7B — 8B — 1B 2B
(3) (4) (5) (6) (7) (8) (9) (10) (11) (12)
1 H He
2 Li Be B C N O F Ne
3 Na Mg Al Si P S Cl Ar
4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
6 Cs Ba La   Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
7 Fr Ra Ac   Rf Db Sg Bh Hs Mt Ds Rg Uub — Uuq — — — —
6   Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
7   Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

 

Every element has a one- or two-letter abbreviation based either on its English name or its Latin or Greek name.

The table below lists the atomic numbers, symbols, and names of all the elements, with the derivations for the symbols which are not of English origin.  A complete list of derivations of the names of the elements may be found here.

 

Atomic
Number		 Symbol Name Atomic Mass
(amu, g/mol)		 Notes
89 Ac Actinium 227.0278  
13 Al Aluminum 26.98154 In some European countries, the element name is spelled "aluminium"
95 Am Americium (243)  
51 Sb Antimony 121.75 Sb comes from the Latin name for the mineral antimony sulfide, stibium
18 Ar Argon 39.948  
33 As Arsenic 74.9216  
85 At Astatine (210)  
56 Ba Barium 137.33  
97 Bk Berkelium (247)  
4 Be Beryllium 9.01218  
83 Bi Bismuth 208.9804  
107 Bh Bohrium (262)  
5 B Boron 10.81  
35 Br Bromine 79.904  
48 Cd Cadmium 112.41  
20 Ca Calcium 40.08  
98 Cf Californium (251)  
6 C Carbon 12.011  
58 Ce Cerium 140.12 In some European countries, the element names is spelled "caesium"
55 Cs Cesium 132.9054  
17 Cl Chlorine 35.453  
24 Cr Chromium 51.996  
27 Co Cobalt 58.9332  
29 Cu Copper 63.546  
96 Cm Curium (247)  
110 Ds Darmstadtium (269)  
105 Db Dubnium (262)  
66 Dy Dysprosium 162.50  
99 Es Einsteinium (252)  
68 Er Erbium 167.26  
63 Eu Europium 151.96  
100 Fm Fermium (257)  
9 F Fluorine 18.998403  
87 Fr Francium (223)  
64 Gd Gadolinium 157.25  
31 Ga Gallium 69.72  
32 Ge Germanium 72.59  
79 Au Gold 196.9665 Au comes from the Latin name, aurum, "shining dawn"
72 Hf Hafnium 178.49  
108 Hs Hassium (255)  
2 He Helium 4.00260  
67 Ho Holmium 164.9304  
1 H Hydrogen 1.00797  
49 In Indium 114.82  
53 I Iodine 126.9045  
77 Ir Iridium 192.22  
26 Fe Iron 55.847 Fe comes from the Latin name, ferrum
36 Kr Krypton 83.80  
57 La Lanthanum 138.9055  
103 Lr Lawrencium (260)  
82 Pb Lead 207.2 Pb comes from the Latin name, plumbum
3 Li Lithium 6.941  
71 Lu Lutetium 174.967  
12 Mg Magnesium 24.305  
25 Mn Manganese 54.9380  
109 Mt Meitnerium (256)  
101 Md Mendelevium (258)  
80 Hg Mercury 200.59 Hg comes from the Latin name, hydragyrum, "liquid silver"
42 Mo Molybdenum 95.94  
60 Nd Neodymium 144.24  
10 Ne Neon 20.179  
93 Np Neptunium 237.0482  
28 Ni Nickel 58.70  
41 Nb Niobium 92.9064 This element is often referred to by metallurgists and metal-producing industries as "columbium" (Cb) [see page on Discoverers of the Elements]
7 N Nitrogen 14.0067  
102 No Nobelium (250)  
76 Os Osmium 190.2  
8 O Oxygen 15.9994  
46 Pd Palladium 106.4  
15 P Phosphorus 30.97376  
78 Pt Platinum 195.09  
94 Pu Plutonium (242)  
84 Po Polonium (209)  
19 K Potassium 39.0983 K comes from the Latin name, kalium
59 Pr Praseodymium 140.9077  
61 Pm Promethium (145)  
91 Pa Protactinium 231.0359  
88 Ra Radium 226.0254  
86 Rn Radon (222)  
75 Re Rhenium 186.207  
45 Rh Rhodium 102.9055  
37 Rb Rubidium 85.4678  
111 Rg Roentgenium (272)  
44 Ru Ruthenium 101.07  
104 Rf Rutherfordium (261)  
62 Sm Samarium 150.4  
21 Sc Scandium 44.9559  
106 Sg Seaborgium (263)  
34 Se Selenium 78.96  
14 Si Silicon 28.0855  
47 Ag Silver 107.868 Ag comes from the Latin name, argentum
11 Na Sodium 22.98977 Na comes from the Latin name, natrium
38 Sr Strontium 87.62  
16 S Sulfur 32.06  
73 Ta Tantalum 180.9479  
43 Tc Technetium (98)  
52 Te Tellurium 127.60  
65 Tb Terbium 158.9254  
81 Tl Thallium 204.37  
90 Th Thorium 232.0381  
69 Tm Thulium 168.9342  
50 Sn Tin 118.69 Sn comes from the Latin name, stannum
22 Ti Titanium 47.90  
74 W Tungsten 183.85 W comes from the German name, wolfram ("wolf dirt," so named because of its presence as an impurity in the mining of tin); in some countries, the element is still called "wolfram"
112 Uub Ununbiium (277) Generic name*
114 Uuq Ununquadium   Generic name*
92 U Uranium 238.029  
23 V Vanadium 50.9415  
54 Xe Xenon 131.30  
70 Yb Ytterbium 173.04  
39 Y Yttrium 88.9059  
30 Zn Zinc 65.38  
40 Zr Zirconium 91.22  
113 — —— ———  

 

 

Generic Names

Generic names and symbols are given to artificially produced elements which have been reported but not yet assigned official names.  These names and symbols are assembled from the digits in the atomic number of the element, plus the ending -ium.

0 nil   5 pent
1 un   6 hex
2 bi   7 setp
3 tri   8 oct
4 quad   9 enn

Thus, element 110, before it was given the name "Darmstadtium" was known as ununnilium (Uun), element 111 was unununium (Uuu), element 113 is ununtrium, and so on.