Àdàkọ:Infobox ọ́ksíjìn

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Ọ́ksíjìn, 8O
Ọ́ksíjìn
Ìhànsójúcolorless gas; pale blue liquid. Oxygen bubbles rise in this photo of liquid oxygen.
Ìwúwo átọ̀mù Ar, std(O)[15.9990315.99977] conventional: 15.999
Ọ́ksíjìn ní orí tábìlì àyè
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
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O

S
nítrójìnọ́ksíjìnfluorínì
Nọ́mbà átọ̀mù (Z)8
Ẹgbẹ́group 16 (chalcogens)
Àyèàyè 2
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì  [[Àdàkọ:Infobox element/symbol-to-category]]
Ìtò ẹ̀lẹ́ktrọ́nùÀdàkọ:Infobox element/symbol-to-electron-configuration
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 6
Àwọn ohun ìní ara
Ìfarahàn at STPgas
Ìgbà ìyọ́54.36 K ​(-218.79 °C, ​-361.82 °F)
Ígbà ìhó90.20 K ​(-182.95 °C, ​-297.31 °F)
Kíki (at STP)1.429 g/L
when liquid (at b.p.)1.141 g/cm3
Critical point154.59 K, 5.043 MPa
Heat of fusion(O2) 0.444 kJ/mol
Heat of (O2) 6.82 kJ/mol
Molar heat capacity(O2)
29.378 J/(mol·K)
 pressure
Atomic properties
Oxidation statesÀdàkọ:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 3.44
energies
Covalent radius66±2 pm
Van der Waals radius152 pm
Àdàkọ:Infobox element/spectral lines
Other properties
Natural occurrenceÀdàkọ:Infobox element/symbol-to-occurrence
Crystal structureÀdàkọ:Infobox element/crystal structure
Speed of sound(gas, 27 °C) 330 m/s
Thermal conductivity26.58x10-3  W/(m·K)
Magnetic orderingparamagnetic
CAS Number7782-44-7
History
DiscoveryCarl Wilhelm Scheele (1772)
Named byAntoine Lavoisier (1777)
Main isotopes of ọ́ksíjìn
[[Isotope|IsoÀdàkọ:Shytope]] [[Natural abundance|AbunÀdàkọ:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProÀdàkọ:Shyduct]]
16O 99.76% 16O is stable with 8 neutrons
17O 0.039% 17O is stable with 9 neutrons
18O 0.201% 18O is stable with 10 neutrons
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