It has been suggested that this article or section be merged with List of elements by name, List of elements by symbol, List of elements by atomic number, List of elements by atomic mass, List of elements by melting point, List of elements by density, List of elements by melting point and List of elements by boiling point to List of elements. (Discuss)

This is a list of the chemical elements, sorted by density measured at standard temperature and pressure. (The first elements from hydrogen to radon are gases at normal room temperatures.)

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Name	Symbol	Density (g/cm³)	Atomic number	Description/Mohs' hardness	Color	Notes
Hydrogen	H	00.0000 0.00008988	1	gas	colorless	diatomic
Helium	He	00.0001 0.0001785	2	noble gas		lowest boiling and melting points of any element
Neon	Ne	00.0008 0.0008999	10	noble gas
Nitrogen	N	00.0012 0.0012506	7	gas		diatomic
Oxygen	O	00.0014 0.001429	8	gas		diatomic
Fluorine	F	00.0016 0.001696	9	halogen gas	yellow-green or yellowish brown
Argon	Ar	00.0017 0.0017837	18	noble gas
Chlorine	Cl	00.0032 0.003214	17	halogen gas	yellowish green or greenish yellow
Krypton	Kr	00.0037 0.003733	36	noble gas		forms compounds with fluorine and clathrates with water
Xenon	Xe	00.0058 0.005887	54	noble gas		Forms compounds with chlorine and fluorine, and a few others.
Radon	Rn	00.0097 0.00973	86	noble gas		radioactive, comes from radium
Lithium	Li	00.5430 0.534	3	0.6	silvery white/gray	used in batteries. the least dense metal
Potassium	K	00.8620 0.862	19	0.4	silvery white	forms many compounds, essential nutrient in plants and animals
Sodium	Na	00.9710 0.971	11	0.5	waxy, silvery white	burns with a yellow flame, reacts violently with water, and oxidizes in air necessitating storage in an inert environment
Rubidium	Rb	01.5320 1.532	37	0.3	silvery-white	low melting point, reacts violently with water like sodium
Calcium	Ca	01.5400 1.54	20	1.75	gray	reacts slowly with water, tarnishes quickly in air
Magnesium	Mg	01.7380 1.738	12	2.5	silvery metallic	brittle, flammable, used in lightweight alloys, burns with a bright flame
Phosphorus	P	01.8200 1.82	15	nonmetal	waxy white/ red/ black/ colorless	Due to its high reactivity, it is never found as a free element in nature. Phosphorus compounds are essential to living things
Beryllium	Be	01.8500 1.85	4	5.5	gray metallic	brittle, toxic, used in lightweight alloys, e.g. spacecraft and missiles.
Francium	Fr	01.8700 1.87	87	radioactive alkali metal		alkali metal isotope found in uranium and thorium ores, reacts explosively with air and water.
Caesium	Cs	01.8730 1.873	55	0.2	silvery gold	liquid at or near room temperature, very reactive, reacts explosively with water.
Sulfur	S	02.0670 2.067	16	2.0	lemon yellow
Carbon	C	03.5130 3.513	6	10.0 (diamond)	colorless
Carbon	C	02.2670 2.267	6	1-2 (graphite)	black
Silicon	Si	02.3296 2.3296	14	6.5 metalloid	dark gray, bluish tinge	Used in semiconductors and electronics.
Boron	B	02.3400 2.34	5	9.3	black/brown/ amorphous boron is a brown powder, metallic boron is black	The metallic form is hard (9.3 on Mohs' scale) and a poor conductor at room temperature.
Strontium	Sr	02.6400 2.64	38	1.5	a soft silver-white or yellowish metallic element	The metal turns yellow when exposed to air. somewhat malleable. It is chiefly employed (as in the nitrate) to color pyrotechnic flames red.
Aluminium	Al	02.6980 2.698	13	2.75	silvery	non-magnetic, very reflective, lightweight, common building material.
Scandium	Sc	02.9890 2.989	21	transition metal	soft, silvery, develops a slightly yellowish or pinkish cast when exposed to air	not attacked by a 1:1 mixture of nitric acid(HNO3) and 48% HF
Bromine	Br	03.1220 3.122	35	halogen	gas/liquid: red-brown solid: metallic luster	a red volatile liquid at standard room temperature. This element is corrosive to human tissue
Barium	Ba	03.5940 3.594	56	1.25	metallic	Naturally occurring barium is a mix of seven stable isotopes. There are twenty-two isotopes known, but most of these are highly radioactive and have half-lives in the several millisecond to several minute range. The only notable exceptions are 133Ba which has a half-life of 10.51 years, and 137mBa (2.6 minutes).
Yttrium	Y	04.4690 4.469	39	transition metal	silvery metallic	two of its compounds are used to make the red color phosphors in cathode ray tube displays
Titanium	Ti	04.5400 4.540	22	6.0	silvery metallic	corrosion-resistant (including resistance to sea water and chlorine), high tensile strength
Selenium	Se	04.8090 4.809	34	2.0	gray, metallic luster	Selenium has at least 29 isotopes, of which 5 are stable, and 6 are nuclear isomers.
Iodine	I	04.9300 4.93	53	halogen solid that sublimes at room temperatures into an irritating purple-pink gas	violet-dark gray, lustrous	Least reactive of the halogens, still a strong oxidizing agent. Heaviest trace element essential for life.
Europium	Eu	05.2430 5.243	63	lanthanide
Germanium	Ge	05.3230 5.323	32	6.0		Used in semiconductors and LEDs
Radium	Ra	05.5000 5.50	88	radioactive alkaline earth metal	almost pure white, readily oxidizes on exposure to air, turning black	Radium preparations are remarkable for maintaining themselves at a higher temperature than their surroundings, and for their radiations: alpha particles, beta particles, and gamma rays. Radium also produces neutrons when mixed with beryllium.
Arsenic	As	05.7760 5.776	33	3.5	metallic gray, allotropic forms; yellow, black and grey	poisonous
Gallium	Ga	05.9070 5.907	31	1.5		melts at 29.7 degrees Celsius (just above room temperature), Used in semiconductors.
Vanadium	V	06.1100 6.11	23	7.0		Brittle. Used to make tool steels.
Lanthanum	La	06.1450 6.145	57	2.5
Tellurium	Te	06.2320 6.232	52	2.25	silvery lustrous gray
Zirconium	Zr	06.5060 6.506	40	5.0
Antimony	Sb	06.6850 6.685	51	3.0	silvery lustrous grey	toxic
Cerium	Ce	06.7700 6.770	58	2.5	resembles iron	Used in ceramics and glassmaking, component of "flints" in cigarette lighters.
Praseodymium	Pr	06.7730 6.773	59	soft	silvery white, yellowish tinge
Ytterbium	Yb	06.9650 6.965	70		silvery white, metallic
Astatine	At	07.0000 7 approximately	85			Extremely rare
Neodymium	Nd	07.0070 7.007	60			used in powerful permanent magnets and LASERs
Zinc	Zn	07.1340 7.134	30	2.5		Used to "galvanize" nails, sheet metal, and such.
Chromium	Cr	07.1500 7.15	24	8.5		e.g. Stainless steels, chrome plating, heating coils; +6 compounds are toxic.
Promethium	Pm	07.2600 7.26	61
Tin	Sn	07.2870 7.287	50	1.5 soft metal		Main component of solder.
Indium	In	07.3100 7.310	49	soft metal
Manganese	Mn	07.4400 7.44	25	6.0
Samarium	Sm	07.5200 7.52	62
Iron	Fe	07.8740 7.874	26	metal		Most stable element. Greatest number of stable isotopes.
Gadolinium	Gd	07.8950 7.895	64			Phosphor in TV tubes and fluorescent lights.
Terbium	Tb	08.2290 8.229	65			Phosphor in TV tubes and fluorescent lights.
Dysprosium	Dy	08.5500 8.55	66
Niobium	Nb	08.5700 8.570	41
Cadmium	Cd	08.6900 8.69	48			toxic, used in batteries
Holmium	Ho	08.7950 8.795	67
Cobalt	Co	08.8600 8.86	27			ferromagnetic, used in high temperature alloys, blue pigments, moderate toxicity
Nickel	Ni	08.9120 8.912	28			alloys, nickel plating
Copper	Cu	08.9600 8.96	29			"noble" metal, good conductor of electricity and heat
Erbium	Er	09.0660 9.066	68
Polonium	Po	09.3200 9.32	84			radioactive
Ununhexium	Uuh	09.3200 9.32 or greater	116			man-made, highly unstable
Thulium	Tm	09.3210 9.321	69
Bismuth	Bi	09.8070 9.807	83			electrical solders, fire suppressors, replacement for lead bullets
Ununpentium	Uup	09.8070 9.807 or greater	115			unstable, man-made
Lutetium	Lu	09.8400 9.84	71
Lawrencium	Lr	09.8400 9.84 or greater	103			artificial
Actinium	Ac	10.0700 10.07	89		radioactive metallic element. glows in the dark with an eerie blue light.
Molybdenum	Mo	10.2200 10.22	42			In "chrome-moly" steels and other steels, lubricants
Silver	Ag	10.5010 10.501	47			noble metal, in money, jewelry, eating utensils, soldering and brazing alloys
Lead	Pb	11.3420 11.342	82			toxic, being phased out in most applications
Ununquadium	Uuq	11.3420 11.342 or greater	114			unstable, man-made
Technetium	Tc	11.5000 11.50	43			man-made, used in nuclear medicine.
Thorium	Th	11.7200 11.72	90			Possible nuclear fuel
Thallium	Tl	11.8500 11.85	81			toxic, high-temperature superconductors
Ununtrium	Uut	11.8500 11.85 or greater	113			artificial element
Palladium	Pd	12.0200 12.020	46
Ruthenium	Ru	12.3700 12.37	44
Rhodium	Rh	12.4100 12.41	45
Hafnium	Hf	13.3100 13.31	72
Einsteinium	Es	13.5000 13.5 (Estimate)	99			artificial
Curium	Cm	13.5100 13.51	96			artificial
Mercury	Hg	13.5336 13.5336	80			liquid at room temperature; toxic; in batteries and thermometers
Ununbium	Uub	13.5336 13.5336 or greater	112			artificial element,
Americium	Am	13.6900 13.69	95			Am-241 used in smoke detectors.
Berkelium	Bk	14.7900 14.79	97			artificial
Californium	Cf	15.1000 15.10	98			artificial
Protactinium	Pa	15.3700 15.37	91			artificial
Tantalum	Ta	16.6540 16.654	73			used in electrolytic capacitors
Rutherfordium	Rf	18.1000 18.1	104			artificial
Uranium	U	18.9500 18.95	92			nuclear fuel
Tungsten	W	19.2500 19.25	74			strong but brittle; heat resistant; extremely high melting point
Gold	Au	19.2820 19.282	79
Roentgenium	Rg	19.2820 19.282 or greater	111			artificial
Plutonium	Pu	19.8400 19.84	94			nuclear fuel
Neptunium	Np	20.4500 20.45	93
Rhenium	Re	21.0200 21.02	75
Platinum	Pt	21.4600 21.46	78			precious metal and industrial catalyst
Darmstadtium	Ds	21.4600 21.46 or greater	110			artificial
Iridium	Ir	22.5600 22.560	77	silvery-white
Osmium	Os	22.6100 22.610	76			Densest natural element
Seaborgium	Sg	35.0000 35 (Estimate)	106			artificial, all remaining elements below are artificial
Meitnerium	Mt	35.0000 35 (Estimate)	109
Bohrium	Bh	37.0000 37 (Estimate)	107
Dubnium	Db	39.0000 39 (Estimate)	105
Hassium	Hs	41.0000 41 (Estimate)	108
Fermium	Fm	99.9999 Unknown	100
Mendelevium	Md	99.9999 Unknown	101
Nobelium	No	99.9999 Unknown	102
Ununoctium	Uuo	99.9999 Unknown	118