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Atomic Names and Symbols

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Uub

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Uuq

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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 the 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.

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.

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