Oxygen
Oxygen

Oxygen

Oxygen (an element with atomic symbol O, atomic number 8, and atomic weight 16)

class, substance, periodic element, nonmetal, gas, medical concept, cause, Drugs, hormones and biological mediators

Atomic Number, Atomic number
8
State
gas
Symbol, Chemical Symbol
"O"
Atomic mass
15.9994 unified atomic mass units, 15.9994
Class
gas; nonmetal; periodic element; Drugs, hormones and biological mediators; medical concept;  …
Parent Class
nonmetal, periodic element, substance
Discovered
1774
Discoverer
Joseph Henry
Wikipedia Page
http://en.wikipedia.org/wiki/Oxygen
Experts
Carl Wilhelm Scheele
CAS Code
"7782-44-7"
Contained in
water
Ranking
eighth, periodic element and ordering by number of protons
Risk Factor for
retinopathy of prematurity
Interacts with
Antioxidants
Cause of
respiratory acidosis
See also
Hyperbaric oxygen
Allotrope
ozone, dioxygen
Wordnet Synset ID
"114648100"
Attributes
a gas
Density
0.001429 grams per cubic cm
Atomic Weight
15.9994
Boiling Point
-183 degrees celsius (-297 degrees fahrenheit), -182.95 degrees celsius (-297.31 degrees fahrenheit)
Atomic Mass
15.9994, 15.9994 unified atomic mass units
Melting Point
-218.4 degrees celsius (-361.1 degrees fahrenheit), 50.5 kelvins
Freebase ID
"/guid/9202a8c04000641f80000000045c194d"
OpenCyc ID
"Mx4rvVjIyJwpEbGdrcN5Y29ycA"
DBPedia URI
http://dbpedia.org/resource/Oxygen
Related Websites
http://www.rsc.org/chemistryworld/podcast/element.asp, http://www.webelements.com/webelements/elements/text/O/index.html, http://www.americanscientist.org/template/AssetDetail/assetid/29647/page/1, http://www.uigi.com/oxygen.html, http://www.organic-chemistry.org/chemicals/oxidations/oxygen.shtm
Mesh ID
"D010100"
Diseases DB id
"9461"
Freebase Primary MID
"/m/025s6bf"

tk10nstored

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