Lista över grundämnen - Periodiska systemet

Nr	Tecken	Grundämne	Atommassa (u)	Densitet (g/cm³)	Smältpunkt (°C)	Kokpunkt (°C)	Elektronegativitet	Upptäcktes
1	H	Väte	1.0079	0.08988	-259.16	-252.879	2.2	1766
2	He	Helium	4.0026	0.1786	-272.2	-268.928		1868
3	Li	Litium	6.938	0.534	180.5	1329.85	0.98	1817
4	Be	Beryllium	9.01218	1.85	1286.85	2468.85	1.57	1798
5	B	Bor	10.806	2.08	2075.85	3926.85	2.04	1808
6	C	Kol	12.0096	1.821			2.55	3750 f.Kr.
7	N	Kväve	14.0064	1.251	-210	-195.795	3.04	1772
8	O	Syre	15.999	1.429	-218.79	-182.962	3.44	1771
9	F	Fluor	18.9984	1.696	-219.67	-188.12	3.98	1810
10	Ne	Neon	20.1797	0.9002	-248.59	-246.046		1898
11	Na	Natrium	22.9898	0.968	97.794	882.94	0.93	1807
12	Mg	Magnesium	24.304	1.738	649.85	1089.85	1.31	1755
13	Al	Aluminium	26.9815	2.7	660.32	2469.85	1.61	1825
14	Si	Kisel	28.084	2.329	1413.85	3264.85	1.9	1823
15	P	Fosfor	30.9738	1.823			2.19	1669
16	S	Svavel	32.059	2.07	115.21	444.65	2.58	2000 f.Kr.
17	Cl	Klor	35.446	3.2	-101.55	-34.04	3.16	1774
18	Ar	Argon	39.792	1.784	-189.34	-185.848		1894
19	K	Kalium	39.0983	0.862	63.55	758.85	0.82	1807
20	Ca	Kalcium	40.0784	1.55	841.85	1483.85	1	1808
21	Sc	Skandium	44.9559	2.985	1540.85	2835.85	1.36	1879
22	Ti	Titan	47.8671	4.506	1667.85	3286.85	1.54	1791
23	V	Vanadin	50.9415	6	1909.85	3406.85	1.63	1801
24	Cr	Krom	51.9962	7.19	1906.85	2670.85	1.66	1794
25	Mn	Mangan	54.938	7.21	1245.85	2060.85	1.55	1774
26	Fe	Järn	55.8452	7.874	1537.85	2860.85	1.83	5000 f.Kr.
27	Co	Kobolt	58.9332	8.9	1494.85	2926.85	1.88	1735
28	Ni	Nickel	58.6934	8.908	1454.85	2729.85	1.91	1751
29	Cu	Koppar	63.5463	8.96	1084.62	2561.85	1.9	9000 f.Kr.
30	Zn	Zink	65.382	7.14	419.53	906.85	1.65	1000 f.Kr.
31	Ga	Gallium	69.7231	5.91	29.765	2399.85	1.81	1875
32	Ge	Germanium	72.6308	5.323	938.25	2832.85	2.01	1886
33	As	Arsenik	74.9216	5.727			2.18	815
34	Se	Selen	78.9718	4.81	220.85	684.85	2.55	1817
35	Br	Brom	79.901	3.1028	-7.35	58.85	2.96	1825
36	Kr	Krypton	83.7982	3.749	-157.37	-153.22	3	1898
37	Rb	Rubidium	85.4678	1.532	39.3	687.85	0.82	1861
38	Sr	Strontium	87.621	2.64	776.85	1376.85	0.95	1787
39	Y	Yttrium	88.9058	4.472	1525.85	2929.85	1.22	1794
40	Zr	Zirkonium	91.2242	6.52	1854.85	4376.85	1.33	1789
41	Nb	Niob	92.9064	8.57	2476.85	4743.85	1.6	1801
42	Mo	Molybden	95.951	10.28	2622.85	4638.85	2.16	1778
43	Tc	Teknetium	98.9062	11	2156.85	4264.85	1.9	1937
44	Ru	Rutenium	101.072	12.45	2333.85	4149.85	2.2	1844
45	Rh	Rodium	102.906	12.41	1963.85	3694.85	2.28	1804
46	Pd	Palladium	106.421	12.023	1554.9	2962.85	2.2	1802
47	Ag	Silver	107.868	10.49	961.78	2161.85	1.93	5000 f.Kr.
48	Cd	Kadmium	112.414	8.65	321.07	766.85	1.69	1817
49	In	Indium	114.818	7.31	156.599	2071.85	1.78	1863
50	Sn	Tenn	118.711	7.365	231.93	2601.85	1.96	3500 f.Kr.
51	Sb	Antimon	121.76	6.697	630.63	1634.85	2.05	815
52	Te	Tellur	127.603	6.24	449.51	987.85	2.1	1782
53	I	Jod	126.904	4.933	113.7	184.25	2.66	1811
54	Xe	Xenon	131.294	5.894	-111.75	-108.099	2.6	1898
55	Cs	Cesium	132.905	1.93	28.55	670.85	0.79	1860
56	Ba	Barium	137.328	3.51	726.85	1844.85	0.89	1772
57	La	Lantan	138.905	6.162	919.85	3463.85	1.1	1838
58	Ce	Cerium	140.116	6.77	794.85	3442.85	1.12	1803
59	Pr	Praseodym	140.908	6.77	934.85	3129.85	1.13	1885
60	Nd	Neodym	144.242	7.01	1023.85	3073.85	1.14	1885
61	Pm	Prometium	145	7.26	1041.85	2999.85	1.13	1942
62	Sm	Samarium	150.362	7.52	1071.85	1899.85	1.17	1879
63	Eu	Europium	151.964	5.264	825.85	1528.85	1.2	1896
64	Gd	Gadolinium	157.253	7.9	1311.85	2999.85	1.2	1880
65	Tb	Terbium	158.925	8.23	1355.85	3122.85	1.1	1843
66	Dy	Dysprosium	162.5	8.54	1406.85	2566.85	1.22	1886
67	Ho	Holmium	164.93	8.79	1460.85	2599.85	1.23	1878
68	Er	Erbium	167.259	9.066	1528.85	2867.85	1.24	1843
69	Tm	Tulium	168.934	9.32	1544.85	1949.85	1.25	1879
70	Yb	Ytterbium	173.045	6.9	823.85	1195.85	1.1	1878
71	Lu	Lutetium	174.967	9.841	1651.85	3401.85	1.27	1906
72	Hf	Hafnium	178.492	13.31	2232.85	4602.85	1.3	1922
73	Ta	Tantal	180.948	16.69	3016.85	5457.85	1.5	1802
74	W	Volfram	183.841	19.25	3421.85	5929.85	2.36	1781
75	Re	Rhenium	186.207	21.02	3185.85	5595.85	1.9	1908
76	Os	Osmium	190.233	22.59	3032.85	5011.85	2.2	1803
77	Ir	Iridium	192.217	22.56	2445.85	4129.85	2.2	1803
78	Pt	Platina	195.085	21.45	1768.25	3824.85	2.28	1735
79	Au	Guld	196.967	19.3	1064.18	2969.85	2.54	6000 f.Kr.
80	Hg	Kvicksilver	200.592	13.534	-38.829	356.73	2	1500 f.Kr.
81	Tl	Tallium	204.382	11.85	303.85	1472.85	1.62	1861
82	Pb	Bly	207.21	11.34	327.46	1748.85	1.87	7000 f.Kr.
83	Bi	Vismut	208.98	9.78	271.55	1563.85	2.02	1000
84	Po	Polonium	209	9.196	253.85	961.85	2	1898
85	At	Astat	210	6.35	301.85	336.85	2.2	1940
86	Rn	Radon	222	9.73	-71.15	-61.65	2.2	1899
87	Fr	Francium	223	1.87	26.85	676.85	0.79	1939
88	Ra	Radium	226	5.5	959.85	1736.85	0.9	1898
89	Ac	Aktinium	227	10	1226.85	3226.85	1.1	1902
90	Th	Torium	232.038	11.724	1749.85	4787.85	1.3	1829
91	Pa	Protaktinium	231.036	15.37	1567.85	4026.85	1.5	1913
92	U	Uran	238.029	19.1	1132.15	4130.85	1.38	1789
93	Np	Neptunium	237	20.45	638.85	4173.85	1.36	1940
94	Pu	Plutonium	244	19.816	639.35	3231.85	1.28	1940
95	Am	Americium	243	12	1175.85	2606.85	1.13	1944
96	Cm	Curium	247	13.51	1339.85	3109.85	1.28	1944
97	Bk	Berkelium	247	14.78	985.85	2626.85	1.3	1949
98	Cf	Californium	251	15.1	899.85	1469.85	1.3	1950
99	Es	Einsteinium	252	8.84	859.85	995.85	1.3	1952
100	Fm	Fermium	257		1526.85		1.3	1952
101	Md	Mendelevium	258		826.85		1.3	1955
102	No	Nobelium	259		826.85		1.3	1966
103	Lr	Lawrencium	262		1626.85		1.3	1961
104	Rf	Rutherfordium	261	23.2	2126.85	5526.85		1969
105	Db	Dubnium	268	29.3				1970
106	Sg	Seaborgium	269	35				1974
107	Bh	Bohrium	270.133	37.1				1981
108	Hs	Hassium	269	40.7	-147.15			1984
109	Mt	Meitnerium	277.154	37.4				1982
110	Ds	Darmstadtium	281	34.8				1994
111	Rg	Röntgenium	281	28.7				1994
112	Cn	Copernicium	285	23.7		3296.85		1996
113	Nh	Nihonium	286	16	426.85	1156.85		2003
114	Fl	Flerovium	289	14	66.85	146.85		1999
115	Mc	Moskovium	288	13.5	396.85	1126.85		2003
116	Lv	Livermorium	293	12.9	435.85	811.85		2000
117	Ts	Tenness	294	7.17	449.85	609.85		2009
118	Og	Oganesson	294	4.95		76.85		2002