Template:Infobox oxygen

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[[Category:Template:Pagetype with short description]]

Oxygen, 8O
Oxygen
Appearance
Liquid Oxygen
Standard atomic weight Ar, std(O)[[[:Template:Val]], Template:Val] conventional: Template:Val
Oxygen in the periodic table
Template:Periodic table (32 columns, micro) -

O

S
nitrogenoxygenfluorine
Atomic number (Z)8
Groupgroup 16 (chalcogens)
Periodperiod 2
Block  p-block
Electron configuration[He] 2s2 2p4
Electrons per shell2, 6
Physical properties
Phase at STPgas
Melting point54.36 K ​(-218.79 °C, ​-361.82 °F)
Boiling point90.20 K ​(-182.95 °C, ​-297.31 °F)
Critical point154.59 K, 5.043 MPa
Heat of fusion(O2) 0.444 kJ/mol
Heat of vaporization(O2) 6.82 kJ/mol
Molar heat capacity(O2)
29.378 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K)       61 73 90
Atomic properties
Oxidation states−2, −1, 0, +1, +2
ElectronegativityPauling scale: 3.44
Ionization energies
Atomic radiusempirical: 60 pm
calculated: 48 pm
Covalent radius73 pm
Van der Waals radius152 pm
Color lines in a spectral range
Spectral lines of oxygen
Other properties
Natural occurrenceprimordial
Crystal structurecubic
Cubic crystal structure for oxygen
Speed of sound(gas, 27 °C) 330 m/s
Thermal conductivity26.58x10-3  W/(m·K)
Magnetic orderingparamagnetic
CAS Number7782-44-7
Main isotopes of oxygen
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
16O 99.76% stable
17O 0.039% stable
18O 0.201% stable
Category Category: Oxygen
| references

[[Category:Infobox templates|Template:Remove first word]]

data m.p. cat
in calc from C diff report ref
C
K 54.36 54.36 0
F -361.82 −361.82 0 Template:Subpage other
max precision 2
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: -218.79, K: 54.36, F: -361.82
comment
data b.p. cat
in calc from C diff report ref
C
K 90.20 90.20 0
F -297.31 −297.31 0 Template:Subpage other
max precision 2
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: -182.95, K: 90.20, F: -297.31
comment