List of elements by density

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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 0.00008988 1 gas diatomic
Helium He 0.0001785 2 noble gas Image:HeTube.jpg lowest boiling and melting points of any element
Neon Ne 0.0008999 10 noble gas Image:NeTube.jpg
Nitrogen N 0.0012506 7 gas diatomic
Oxygen O 0.001429 8 gas diatomic
Fluorine F 0.001696 9 halogen gas yellow-green or yellowish brown
Argon Ar 0.0017837 18 noble gas Image:ArTube.jpg
Chlorine Cl 0.003214 17 halogen gas yellowish green or greenish yellow
Krypton Kr 0.003733 36 noble gas Image:KrTube.jpg forms compounds with fluorine and clathrates with water
Xenon Xe 0.005887 54 noble gas Image:XeTube.jpg
Radon Rn 0.00973 86 noble gas radioactive, comes from radium
Lithium Li 0.534 3 0.6 Image:Li,3.jpg
silvery white/gray 		used in batteries
Potassium K 0.862 19 0.4 Image:K,19.jpg
silvery white 		forms many compounds
Sodium Na 0.971 11 0.5 Image:Na,11.jpg
waxy, silvery white 		burns with a yellow flame, reacts violently with water, and oxidizes in air necessitating storage in an inert environment
Rubidium Rb 1.532 37 0.3 Image:Rb,37.jpg
silvery-white 		low melting point, reacts violently with water like sodium
Calcium Ca 1.54 20 1.75 Image:Ca,20.jpg
gray
Magnesium Mg 1.738 12 2.5 Image:MagnesiumMetalUSGOV.jpg
silvery metallic 		is very brittle, flammable
Phosphorus P 1.82 15 nonmetal Image:P,15.jpg
waxy white/ red/ black/ colorless 		Due to its high reactivity, it is never found as a free element in nature.
Beryllium Be 1.85 4 5.5 Image:Be,4.jpg
gray metallic 		brittle
Francium Fr 1.87 87 radioactive alkali metal alkali metal isotope found in uranium and thorium ores
Cesium Cs 1.873 55 0.2 Image:Cs,55.jpg
silvery gold 		liquid at or near room temperature, very reactive
Sulfur S 2.067 16 2.0 Image:Sulfur.jpg
lemon yellow
Carbon C 2.267 6 10.0 (diamond) colorless
Carbon C 3.513 6 1-2 (graphite) Image:C,6.jpg
black
Silicon Si 2.3296 14 6.5 metalloid Image:Silizium pulver.jpg
dark gray, bluish tinge
Boron B 2.34 5 9.3 Image:B,5.jpg
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 2.64 38 1.5 Image:Sr,38.jpg
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 2.698 13 2.75 Image:Al,13.jpg
silvery 		non-magnetic, very reflective
Scandium Sc 2.989 21 transition metal Image:Sc,21.jpg
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 3.122 35 halogen Image:Br,35.jpg
gas/liquid: red-brown solid: metallic luster 		a red volatile liquid at standard room temperature. This element is corrosive to human tissue
Barium Ba 3.594 56 1.25 Image:Ba,56.jpg
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 4.469 39 transition metal Image:Y,39.jpg
silvery metallic 		two of its compounds are used to make the red color phosphors in cathode ray tube displays
Titanium Ti 4.540 22 6.0 Image:Ti,22.jpg
silvery metallic 		corrosion-resistant (including resistance to sea water and chlorine, high tensile strength
Selenium Se 4.809 34 2.0 Image:Se,34.jpg
gray, metallic luster 		Selenium has at least 29 isotopes, of which 5 are stable, and 6 are nuclear isomers.
Iodine I 4.93 53 halogen solid that sublimes at standard temperatures into a purple-pink gas that has an irritating odor Image:I,53.jpg
violet-dark gray, lustrous 		least reactive of the halogens
Europium Eu 5.243 63 lanthanide Image:Eu,63.jpg
Germanium Ge 5.323 32 6.0 Image:Germanium.jpg
Radium Ra 5.50 88 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 5.776 33 3.5 Image:As,33.jpg
metallic gray, allotropic forms; yellow, black and grey 		poisonous
Gallium Ga 5.907 31 1.5 Image:Gallium1 640x480.jpg melts at 29.7 degrees Celsius (just above room temperature)
Vanadium V 6.11 23 7.0 Image:V,23.jpg
Lanthanum La 6.145 57 2.5 Image:La,57.jpg
Tellurium Te 6.232 52 2.25 Image:Te,52.jpg
silvery lustrous gray
Zirconium Zr 6.506 40 5.0 Image:Zr,40.jpg
Antimony Sb 6.685 51 3.0 Image:Sb,51.jpg
silvery lustrous grey 		toxic
Cerium Ce 6.770 58 2.5 Image:Ce,58.jpg
resembles iron
Praseodymium Pr 6.773 59 soft Image:Pr,59.jpg
silvery white, yellowish tinge
Ytterbium Yb 6.965 70
Astatine At 7 approximately 85
Neodymium Nd 7.007 60 used in powerful permanent magnets
Zinc Zn 7.134 30 2.5
Chromium Cr 7.15 24 8.5
Promethium Pm 7.26 61
Tin Sn 7.287 50 1.5 soft metal
Indium In 7.310 49 soft metal
Manganese Mn 7.44 25 6.0
Samarium Sm 7.52 62
Iron Fe 7.874 26 metal
Gadolinium Gd 7.895 64
Terbium Tb 8.229 65
Dysprosium Dy 8.55 66
Niobium Nb 8.570 41
Cadmium Cd 8.69 48
Holmium Ho 8.795 67
Cobalt Co 8.86 27
Nickel Ni 8.912 28
Copper Cu 8.96 29
Erbium Er 9.066 68
Polonium Po 9.32 84
Ununhexium Uuh 9.32 or greater 116
Thulium Tm 9.321 69
Bismuth Bi 9.807 83
Ununpentium Uup 9.807 or greater 115
Lutetium Lu 9.84 71
Lawrencium Lr 9.84 or greater 103
Actinium Ac 10.07 89 radioactive metallic element. glows in the dark with an eerie blue light.
Molybdenum Mo 10.22 42
Silver Ag 10.501 47
Lead Pb 11.342 82
Ununquadium Uuq 11.342 or greater 114
Technetium Tc 11.50 43
Thorium Th 11.72 90
Thallium Tl 11.85 81
Ununtrium Uut 11.85 or greater 113
Palladium Pd 12.020 46
Ruthenium Ru 12.37 44
Rhodium Rh 12.41 45
Hafnium Hf 13.31 72
Einsteinium Es 13.5 (Estimate) 99
Curium Cm 13.51 96
Mercury Hg 13.5336 80
Ununbium Uub 13.5336 or greater 112
Americium Am 13.69 95
Berkelium Bk 14.79 97
Californium Cf 15.10 98
Protactinium Pa 15.37 91
Tantalum Ta 16.654 73
Rutherfordium Rf 18.1 104
Uranium U 18.95 92
Tungsten W 19.25 74
Gold Au 19.282 79
Roentgenium Rg 19.282 or greater 111
Plutonium Pu 19.84 94
Neptunium Np 20.25 93
Rhenium Re 21.02 75
Platinum Pt 21.46 78
Darmstadtium Ds 21.46 or greater 110
Osmium Os 22.610 76
Iridium Ir 22.650 77
Seaborgium Sg 35 (Estimate) 106
Meitnerium Mt 35 (Estimate) 109
Bohrium Bh 37 (Estimate) 107
Dubnium Db 39 (Estimate) 105
Hassium Hs 41 (Estimate) 108
Fermium Fm Unknown 100
Mendelevium Md Unknown 101
Nobelium No Unknown 102
Ununoctium Uuo Unknown 118
v • d • e
Periodic tables
LayoutsStandard · Vertical · Full names · Names and atomic masses · Text for last · Huge table · Metals and nonmetals · Blocks · Valences · Inline f-block · 218 elements · Electron configurations · Atomic masses · Electronegativities · Alternatives
Lists of elementsName · Atomic symbol · Atomic number · Boiling point · Melting point · Density · Atomic mass
Groups1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18
Periods:1 · 2 · 3 · 4 · 5 · 6 · 7 · 8
Element categoriesAlkalis · Alkaline earths · Lanthanides · Actinides · Transition metals · Metals · Metalloids · Nonmetals · Halogens · Noble gases
Blockss-block · p-block · d-block · f-block · g-block
ar:قائمة عناصر (كثافة)

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