Infobox oxygen

	child table, as reused in {IB-O} Template:V
Main isotopes of Template:Infobox element/symbol-to-name
	{{infobox Template:Infobox element/symbol-to-name isotopes\|child=yes}}

Oxygen, ₈O
	Template:Infobox element/symbol-to-top-image-caption
Oxygen
Pronunciation	Template:Infobox element/pronunciation
Allotropes	Template:Infobox element/symbol-to-allotropes
Appearance	gas: colorless; liquid and solid: pale blue
Mass number	Template:Infobox element/symbol-to-most-stable-isotope
Oxygen in the periodic table
	Template:Infobox element/periodic table
Atomic number (Z)	8
Group	Template:Infobox element/symbol-to-group
Period	Template:Infobox element/symbol-to-period
Block	Template:Infobox element/block format
Electron configuration	Template:Infobox element/symbol-to-electron-configuration
Electrons per shell	2, 6
Physical properties
Phase at STP	Template:Infobox element/symbol-to-phase
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	14.689 J/(mol·K) (O); 29.378 J/(mol·K) (O2)
	Vapor pressureTemplate:Infobox element/vapor pressure table
Atomic properties
Oxidation states	Template:Element-symbol-to-oxidation-state-data
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
	Template:Infobox element/spectral lines
Other properties
Natural occurrence	Template:Infobox element/symbol-to-occurrence
Crystal structure	Template:Infobox element/crystal structure (cP16)
Lattice constant	Template:Infobox element/crystal structurea = 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
Naming	from the Greek ὀξύς (acid, literally 'sharp', from the taste of acids) and -γενής (producer)
Discovery	Michael Sendivogius; Carl Wilhelm Scheele (1604, 1771)
Named by	Antoine Lavoisier (1777)
Symbol	Template:Infobox element/symbol-to-symbol-etymology
Isotopes of oxygen Template:V
	Template:infobox oxygen isotopes does not exist
	Category: Oxygen; view; talk; edit; \| references

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References

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

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

[1]

[2]

Template:Infobox oxygen

References