list of elements by density

7/29/2019 List of Elements by Density..

1/10

List of elements by densityFrom Wikipedia, the free encyclopedia

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.)

Name SymbolDensity

(g/cm)

Atomicnumber

Description/Mohs'hardness

Color Notes

Hydrogen H 0.00008988 1 gas colorless diatomic

Helium He 0.0001785 2 noble gas

lowest boilingand melting

points of anyelement

Neon Ne 0.0008999 10 noble gas

Nitrogen N 0.0012506 7 gas diatomic

Oxygen O 0.001429 8 gas diatomic

Fluorine F 0.001696 9 halogen gasyellow-greenor yellowish

brown

Argon Ar 0.0017837 18 noble gas

Chlorine Cl 0.003214 17 halogen gasyellowish greenor greenishyellow

Krypton Kr 0.003733 36 noble gas

formscompounds withfluorine andclathrates withwater

Xenon Xe 0.005887 54 noble gas

Formscompounds withchlorine andfluorine, and afew others.

of elements by density - Wikipedia, the free encyclopedia http://en.wikipedia.org/w/index.php?title=List_of_elements_by_densit...

10 5/6/2009 8:54 PM


2/10

Radon Rn 0.00973 86 noble gasradioactive,comes fromradium

Lithium Li 0.534 3 0.6

silverywhite/gray

used in batteries.the least dense

metal

Potassium K 0.862 19 0.4

silvery white

forms manycompounds,essential nutrientin plants andanimals

Sodium Na 0.971 11 0.5waxy, silverywhite

burns with ayellow flame,reacts violently

with water, andoxidizes in airnecessitatingstorage in aninertenvironment

Rubidium Rb 1.532 37 0.3

silvery-white

low meltingpoint, reactsviolently withwater like

sodium

Calcium Ca 1.54 20 1.75

gray

reacts slowlywith water,tarnishes quicklyin air

Magnesium Mg 1.738 12 2.5

silvery metallic

brittle,flammable, usedin lightweightalloys, burnswith a bright

flame

Phosphorus P 1.82 15 nonmetal waxy white/red/ black/colorless

Due to its highreactivity, it isnever found as afree element innature.Phosphoruscompounds areessential toliving things

Beryllium Be 1.85 4 5.5

brittle, toxic,used inlightweight


10 5/6/2009 8:54 PM


3/10

gray metallicalloys, e.g.spacecraft andmissiles.

Francium Fr 1.87 87radioactive alkalimetal

alkali metalisotope found inuranium and

thorium ores,reactsexplosively withair and water.

Caesium Cs 1.873 55 0.2

silvery gold

liquid at or nearroomtemperature,very reactive,reactsexplosively with

water.

Sulphur S 2.067 16 2.0

lemon yellow

Carbon C 3.513 6 10.0 (diamond) colorless

Carbon C 2.267 6 1-2 (graphite)

black

Silicon Si 2.3296 14 6.5 metalloid

dark gray,bluish tinge

Used insemiconductorsand electronics.

Boron B 2.34 5 9.3 black/brown/amorphous boronis a brownpowder, metallicboron is black

The metallicform is hard (9.3

on Mohs' scale)and a poorconductor atroomtemperature.

Strontium Sr 2.64 38 1.5a soft silver-white

or yellowishmetallic element

The metal turnsyellow whenexposed to air.somewhatmalleable. It ischieflyemployed (as inthe nitrate) tocolor


10 5/6/2009 8:54 PM


4/10

pyrotechnicflames red.

Aluminium Al 2.698 13 2.75

silvery

non-magnetic,very reflective,lightweight,common

buildingmaterial.

Scandium Sc 2.989 21 transition metal soft, silvery,develops a slightlyyellowish orpinkish cast whenexposed to air

not attacked bya 1:1 mixture ofnitricacid(HNO3) and48% HF

Bromine Br 3.122 35 halogengas/liquid:red-brown solid:metallic luster

a red volatile

liquid atstandard roomtemperature.This element iscorrosive tohuman tissue

Barium Ba 3.594 56 1.25

metallic

Naturallyoccurring bariumis a mix of sevenstable isotopes.

There aretwenty-twoisotopes known,

but most of theseare highlyradioactive andhave half-lives inthe severalmillisecond toseveral minuterange. The only

notableexceptions are133Ba which hasa half-life of10.51 years, and137mBa (2.6minutes).

Yttrium Y 4.469 39 transition metalsilvery metallic

two of itscompounds areused to make the

red colorphosphors incathode ray tubedisplays


10 5/6/2009 8:54 PM


5/10

Titanium Ti 4.540 22 6.0

silvery metallic

corrosion-resistant(includingresistance to seawater andchlorine, hightensile strength

Selenium Se 4.809 34 2.0gray, metallicluster

Selenium has atleast 29 isotopes,of which 5 arestable, and 6 arenuclear isomers.

Iodine I 4.93 53

halogen solid thatsublimes at roomtemperatures into

an irritatingpurple-pink gas violet-darkgray, lustrous

Least reactive ofthe halogens,still a strongoxidizing agent.

Heaviest traceelement essentialfor life.

Europium Eu 5.243 63 lanthanide

Germanium Ge 5.323 32 6.0Used insemiconductorsand LEDs

Radium Ra 5.50 88radioactive alkalineearth metal

almost purewhite, readilyoxidizes on

exposure to air,turning black

Radiumpreparations areremarkable formaintainingthemselves at ahighertemperature thantheirsurroundings,and for their

radiations: alphaparticles, betaparticles, andgamma rays.Radium also

producesneutrons whenmixed with

beryllium.

Arsenic As 5.776 33 3.5metallic gray,allotropic forms;

poisonous


10 5/6/2009 8:54 PM


6/10

yellow, black andgrey

Gallium Ga 5.907 31 1.5

melts at 29.7degrees Celsius(just above roomtemperature),Used insemiconductors.

Vanadium V 6.11 23 7.0Brittle. Used tomake tool steels.

Lanthanum La 6.145 57 2.5

Tellurium Te 6.232 52 2.25 silvery lustrousgray

Zirconium Zr 6.506 40 5.0

Antimony Sb 6.685 51 3.0silvery lustrousgrey

toxic

Cerium Ce 6.770 58 2.5

resembles iron

Used in ceramicsand glassmaking,component of"flints" incigarette lighters.

Praseodymium Pr 6.773 59 softsilvery white,yellowish tinge

Ytterbium Yb 6.965 70silvery white,metallic

Astatine At7approximately

85 Extremely rare

Neodymium Nd 7.007 60

used in powerfulpermanent

magnets andLASERs


10 5/6/2009 8:54 PM


7/10

Zinc Zn 7.134 30 2.5

Used to"galvanize"nails, sheetmetal, and such.

Chromium Cr 7.15 24 8.5

e.g. Stainlesssteels, chrome

plating, heatingcoils; +6compounds aretoxic.

Promethium Pm 7.26 61

Tin Sn 7.287 50 1.5 soft metalMain componentof solder.

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

Most stableelement.Greatest numberof stableisotopes.

Gadolinium Gd 7.895 64

Phosphor in TVtubes andfluorescentlights.

Terbium Tb 8.229 65

Phosphor in TVtubes andfluorescentlights.

Dysprosium Dy 8.55 66

Niobium Nb 8.570 41

Cadmium Cd 8.69 48toxic, used in

batteries

Holmium Ho 8.795 67

Cobalt Co 8.86 27

ferromagnetic,used in hightemperaturealloys, blue

pigments,moderatetoxicity

Nickel Ni 8.912 28alloys, nickel

plating

Copper Cu 8.96 29

"noble" metal,good conductorof electricity and


10 5/6/2009 8:54 PM


8/10

heat

Erbium Er 9.066 68

Polonium Po 9.32 84 radioactive

Ununhexium Uuh9.32 orgreater

116man-made,highly unstable

Thulium Tm 9.321 69

Bismuth Bi 9.807 83

electricalsolders, firesuppressors,replacement forlead bullets

Ununpentium Uup9.807 orgreater

115unstable,man-made

Lutetium Lu 9.84 71

Lawrencium Lr 9.84 orgreater

103 artificial

Actinium Ac 10.07 89

radioactivemetallicelement. glowsin the darkwith an eerie

blue light.

Molybdenum Mo 10.22 42

In"chrome-moly"

steels and othersteels, lubricants

Silver Ag 10.501 47

noble metal, inmoney, jewelry,eating utensils,soldering and

brazing alloys

Lead Pb 11.342 82

toxic, beingphased out inmostapplications

Ununquadium Uuq11.342 orgreater

114unstable,man-made

Technetium Tc 11.50 43man-made, usedin nuclearmedicine.

Thorium Th 11.72 90Possible nuclearfuel

Thallium Tl 11.85 81toxic,high-temperaturesuperconductors


10 5/6/2009 8:54 PM


9/10

Ununtrium Uut11.85 orgreater

113 artificial element

Palladium Pd 12.020 46

Ruthenium Ru 12.37 44

Rhodium Rh 12.41 45

Hafnium Hf 13.31 72

Einsteinium Es13.5(Estimate)

99 artificial

Curium Cm 13.51 96 artificial

Mercury Hg 13.5336 80

liquid at roomtemperature;toxic; in

batteries andthermometers

Ununbium Uub 13.5336 orgreater

112 artificialelement,

Americium Am 13.69 95Am-241 used insmoke detectors.

Berkelium Bk 14.79 97 artificial

Californium Cf 15.10 98 artificial

Protactinium Pa 15.37 91 artificial

Tantalum Ta 16.654 73used inelectrolyticcapacitors

Rutherfordium Rf 18.1 104 artificial

Uranium U 18.95 92 nuclear fuel

Tungsten W 19.25 74

strong butbrittle; heatresistant;extremely highmelting point

Gold Au 19.282 79

Roentgenium Rg19.282 orgreater

111 artificial

Plutonium Pu 19.84 94 nuclear fuel

Neptunium Np 20.45 93

Rhenium Re 21.02 75

Platinum Pt 21.46 78precious metaland industrialcatalyst

Darmstadtium Ds 21.46 orgreater

110 artificial

Iridium Ir 22.560 77 silvery-white


10 5/6/2009 8:54 PM


10/10

Osmium Os 22.610 76Densest naturalelement

Seaborgium Sg 35 (Estimate) 106

artificial, allremainingelements beloware artificial

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

Retrieved from "http://en.wikipedia.org/wiki/List_of_elements_by_density"Categories: Lists of chemical elementsHidden categories: Articles to be merged since February 2008 | All articles to be merged | Articles lackingsources from November 2007 | All articles lacking sources

This page was last modified on 28 April 2009, at 09:27 (UTC).All text is available under the terms of the GNU Free Documentation License. (See Copyrights fordetails.)Wikipedia is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3)

tax-deductible nonprofit charity.


list of elements by density

Documents