List of Periodic Table Elements Sorted by Density

No.	Atomic Weight	Name	Symbol	M.P.  ( °C )	B.P.  ( °C )	Density* (g/cm^3)	Discovery (Year)	Group
76	190.23.00	Osmium	Os	3045	5027	22.06	1803	8
77	192.217	Iridium	Ir	2410	4527	22.04	1803	9
78	195.078	Platinum	Pt	1772	3827	21.45	1735	10
75	186.207	Rhenium	Re	3180	5627	21.04	1925	7
93	237	Neptunium	Np	640	3902	20.02	1940	7
94	244	Plutonium	Pu	640	3235	0,85	1940	8
74	183.84	Tungsten	W	3410	5660	19.35	1783	6
79	1.969.665	Gold	Au	1064	2807	19.32	ancient	11
92	2.380.289	Uranium	U	1132	3818	0,8159722	1789	6
73	1.809.479	Tantalum	Ta	2996	5425	0,7118056	1802	5
91	2.310.359	Protactinium	Pa	1568		15.04	1913	5
98	251	Californium	Cf	900		15.01	1950	12
97	247	Berkelium	Bk	986		0,6375	1949	11
95	243	Americium	Am	994	2607	0,5881944	1944	9
80	200.59.00	Mercury	Hg	-39	357	13.55	ancient	12
96	247	Curium	Cm	1340		13.05	1944	10
72	178.49.00	Hafnium	Hf	2150	5400	13.31	1923	4
45	1.029.055	Rhodium	Rh	1966	3727	12.41	1803	9
44	101.07.00	Ruthenium	Ru	2250	3900	12.37	1844	8
46	106.42.00	Palladium	Pd	1552	2927	12.02	1803	10
81	2.043.833	Thallium	Tl	303	1457	0,5173611	1861	13
90	2.320.381	Thorium	Th	1750	4790	0,5083333	1829	4
43	98	Technetium	Tc	2200	4877	11.05	1937	7
82	207.02.00	Lead	Pb	327	1740	11.35	ancient	14
47	1.078.682	Silver	Ag	962	2212	10.05	ancient	11
42	95.94	Molybdenum	Mo	2617	4612	10.22	1781	6
89	227	Actinium	Ac	1050	3200	10.07	1899	3
71	174.967	Lutetium	Lu	1656	3315	0,4333333	1907	17
83	2.089.804	Bismuth	Bi	271	1560	0,4270833	ancient	15
86	222	Radon	Rn	-71	-62	0,4256944	1900	18
69	1.689.342	Thulium	Tm	1545	1727	9.32	1879	15
84	209	Polonium	Po	254	962	9.03	1898	16
68	167.259	Erbium	Er	1522	2510	9.07	1842	14
29	63.546	Copper	Cu	1083	2567	0,4	ancient	11
27	589.332	Cobalt	Co	1495	2870	8.09	1735	9
28	586.934	Nickel	Ni	1453	2732	8.09	1751	10
67	1.649.303	Holmium	Ho	1470	2720	8.08	1867	13
48	112.411	Cadmium	Cd	321	765	0,3784722	1817	12
41	929.064	Niobium	Nb	2468	4927	8.57	1801	5
66	162.05.00	Dysprosium	Dy	1412	2562	8.55	1886	12
65	1.589.253	Terbium	Tb	1360	3041	8.23	1843	11
64	157.25.00	Gadolinium	Gd	1311	3233	7.09	1880	10
26	55.845	Iron	Fe	1535	2750	0,3520833	ancient	8
62	150.36.00	Samarium	Sm	1072	1900	7.52	1879	8
25	54.938	Manganese	Mn	1245	1962	7.43	1774	7
49	114.818	Indium	In	157	2000	7.31	1863	13
50	118.71	Tin	Sn	232	2270	7.31	ancient	14
61	145	Promethium	Pm	1100	3000	7.03	1945	7
24	519.961	Chromium	Cr	1857	2672	7.19	1797	6
30	65.39.00	Zinc	Zn	420	907	7.13	ancient	12
60	144.24.00	Neodymium	Nd	1010	3127	7.01	1885	6
70	173.04.00	Ytterbium	Yb	824	1466	6.09	1878	16
58	140.116	Cerium	Ce	795	3257	0,3034722	1803	4
59	1.409.077	Praseodymium	Pr	935	3127	0,3034722	1885	5
51	121.76	Antimony	Sb	630	1750	0,2972222	ancient	15
40	91.224	Zirconium	Zr	1852	4377	6.51	1789	4
52	127.06.00	Tellurium	Te	449	990	6.24	1783	16
57	1.389.055	Lanthanum	La	920	3469	6.15	1839	3
23	509.415	Vanadium	V	1890	3380	6.11	1830	5
31	69.723	Gallium	Ga	30	2403	0,2715278	1875	13
54	131.293	Xenon	Xe	-112	-108	5.09	1898	18
33	749.216	Arsenic	As	81	613	0,2583333	ancient	15
88	226	Radium	Ra	700	1737	5.05	1898	2
32	72.64	Germanium	Ge	937	2830	5.32	1886	14
63	151.964	Europium	Eu	822	1597	5.24	1901	9
53	1.269.045	Iodine	I	114	184	0,23125	1811	17
34	78.96	Selenium	Se	217	685	0,2215278	1817	16
22	47.867	Titanium	Ti	1660	3287	4.54	1791	4
39	889.059	Yttrium	Y	1523	3337	4.47	1794	3
36	83.08.00	Krypton	Kr	-157	-153	0,1770833	1898	18
56	137.327	Barium	Ba	725	1140	3.59	1808	2
17	35.453	Chlorine	Cl	-101	-35	3.21	1774	17
35	79.904	Bromine	Br	-7	59	3.12	1826	17
21	449.559	Scandium	Sc	1539	2832	0,1520833	1879	3
13	269.815	Aluminum	Al	660	2467	2.07	1825	13
38	87.62	Strontium	Sr	769	1384	2.54	1790	2
5	10.811	Boron	B	2300	2550	2.34	1808	13
14	280.855	Silicon	Si	1410	2355	2.33	1824	14
6	120.107	Carbon	C	3500	4827	2.26	ancient	14
16	32.065	Sulfur	S	113	445	2.07	ancient	16
55	1.329.055	Cesium	Cs	29	678	0,1020833	1860	1
4	90.122	Beryllium	Be	1278	2970	0,1006944	1797	2
15	309.738	Phosphorus	P	44	280	0,0986111	1669	15
18	39.948	Argon	Ar	-189	-186	0,0958333	1894	18
12	24.305	Magnesium	Mg	639	1090	0,0930556	1755	2
9	189.984	Fluorine	F	-220	-188	1.07	1886	17
37	854.678	Rubidium	Rb	39	688	0,0854167	1861	1
20	40.078	Calcium	Ca	839	1484	1.55	1808	2
8	159.994	Oxygen	O	-218	-183	1.43	1774	16
7	140.067	Nitrogen	N	-210	-196	1.25	1772	15
11	229.897	Sodium	Na	98	883	0,0673611	1807	1
10	201.797	Neon	Ne	-249	-246	0.09	1898	18
19	390.983	Potassium	K	64	774	0,0597222	1807	1
3	6.941	Lithium	Li	180	1347	0.53	1817	1
2	40.026	Helium	He	-272	-269	0.18	1895	18
1	10.079	Hydrogen	H	-259	-253	0.09	1776	1
85	210	Astatine	At	302	337		1940	17
87	223	Francium	Fr	27	677		1939	1
99	252	Einsteinium	Es	860			1952	13
100	257	Fermium	Fm	1527			1952	14
101	258	Mendelevium	Md				1955	15
102	259	Nobelium	No	827			1958	16
103	262	Lawrencium	Lr	1627			1961	17
104	261	Rutherfordium	Rf				1964	4
105	262	Dubnium	Db				1967	5
106	266	Seaborgium	Sg				1974	6
107	264	Bohrium	Bh				1981	7
108	277	Hassium	Hs				1984	8
109	268	Meitnerium	Mt				1982	9

Abbreviations and Definitions:
No. Atomic Number
M.P. - melting point
B.P. - boiling point
* Density of elements with boiling points below 0°C is given in g/l

Atomic number: The number of protons in an atom. Each element is uniquely defined by its atomic number.

Atomic mass: The mass of an atom is primarily determined by the number of protons and neutrons in its nucleus. Atomic mass is measured in Atomic Mass Units (amu) which are scaled relative to carbon, ¹²C, that is taken as a standard element with an atomic mass of 12. This isotope of carbon has 6 protons and 6 neutrons. Thus, each proton and neutron has a mass of about 1 amu.

Isotope: Atoms of the same element with the same atomic number, but different number of neutrons. Isotope of an element is defined by the sum of the number of protons and neutrons in its nucleus. Elements have more than one isotope with varying numbers of neutrons. For example, there are two common isotopes of carbon, ¹²C and ¹³C which have 6 and 7 neutrons respectively. The abundances of different isotopes of elements vary in nature depending on the source of materials. For relative abundances of isotopes in nature see reference on Isotopic Composition of the Elements.

Atomic weight: Atomic weight values represent weighted average of the masses of all naturally occurring isotopes of an element. The values shown here are based on the IUPAC Commission determinations (Pure Appl. Chem. 73:667-683, 2001). The elements marked with an asterisk have no stable nuclides. For these elements the weight value shown represents the mass number of the longest-lived isotope of the