Template:Infobox oxygen

	child table, as reused in {IB-O} v; e; h;
Main isotopes of oxygen

Oxygen, ₈O
	Oxygen-filled discharge tube glowing purple.
Oxygen
Allotropes	O2, O3 (ozone) and more (see Allotropes of oxygen)
Appearance	gas: colorless; liquid and solid: pale blue
Standard atomic weight Ar°(O)
	[15.99903, 15.99977]; 15.999±0.001 (abridged);
Abundance
in the Earth's crust	461000 ppm
Oxygen in the periodic table
	nitrogen ← oxygen → fluorine
Atomic number (Z)	8
Group	group 16 (chalcogens)
Period	period 2
Block	p-block
Electron configuration	[He] 2s2 2p4
Electrons per shell	2, 6
Physical properties
Phase at STP	gas
Melting point	(O2) 54.36 K (−218.79 °C, −361.82 °F)
Boiling point	(O2) 90.188 K (−182.962 °C, −297.332 °F)
Density (at STP)	1.429 g/L
when liquid (at b.p.)	1.141 g/cm3
Triple point	54.361 K, 0.1463 kPa
Critical point	154.581 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)
Atomic properties
Oxidation states	−2, −1, 0, +1, +2
Electronegativity	Pauling scale: 3.44
Ionization energies	1st: 1313.9 kJ/mol ; 2nd: 3388.3 kJ/mol ; 3rd: 5300.5 kJ/mol ; (more) ;
Covalent radius	66±2 pm
Van der Waals radius	152 pm
	Spectral lines of oxygen
Other properties
Natural occurrence	primordial
Crystal structure	cubic (cP16)
Lattice constant	a = 678.28 pm (at t.p.)
Thermal conductivity	26.58×10−3 W/(m⋅K)
Magnetic ordering	paramagnetic
Molar magnetic susceptibility	+3449.0×10−6 cm3/mol (293 K)
Speed of sound	330 m/s (gas, at 27 °C)
CAS Number	7782-44-7
History
Discovery	Michael Sendivogius; Carl Wilhelm Scheele (1604, 1771)
Named by	Antoine Lavoisier (1777)
Isotopes of oxygen v; e;
	Category: Oxygen; view; talk; edit; \| references

O · Oxygen
N ← ibox N	^iso ₈O [e] IB-O [e] IBisos [e]	→ F ibox F
cat:O (45) cat:O-isotopes (15) Commons Wikidata:Q629 Wiktionary
indexes by PT (page) v e

Data sets read by {{Infobox element}}
Name and identifiers	view edit
Symbol etymology (11 non-trivial)	view edit
Top image (caption, alt)	view edit
Pronunciation	view edit
Allotropes (overview)	view edit
Group (overview)	view edit
Period (overview)	view edit
Block (overview)	view edit
Natural occurrence	view edit
Phase at STP	view edit
Oxidation states	view edit
Spectral lines image	view edit
Electron configuration (cmt, ref)	view edit
Isotopes
Standard atomic weight	view edit
most stable isotope	view edit
Wikidata
Wikidata *	view edit
* Not used in {{Infobox element}} (2023-01-01) See also {{Index of data sets}} · Cat:data sets (12) · (this table: v )

References

^ "Standard Atomic Weights: Oxygen". CIAAW. 2009.
^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
^ Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.
^ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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[1] "Standard Atomic Weights: Oxygen". CIAAW. 2009.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[Arblaster_2018-3] Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.

[4] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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