Oxygen

Table columns:
Liquid oxygen boiling
General properties
Allotropes
Appearance
Standard atomic weight (Ar, standard)
Oxygen in the periodic table
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 – ↑ O ↓ S nitrogen ← oxygen → fluorine
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 – ↑ O ↓ S nitrogen ← oxygen → fluorine
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
Hydrogen
Lithium
Sodium
Potassium
Rubidium
Caesium
Francium
nitrogen ← oxygen → fluorine
Atomic number (Z)
Group
Period
Element category
Block
Electron configuration
Electrons per shell
Physical properties
Phase at STP
Melting point
Boiling point
Density (at STP)
when liquid (at b.p.)
Triple point
Critical point
Heat of fusion
Heat of vaporization
Molar heat capacity
Vapor pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K)  61 73 90
P (Pa)
at T (K)
Atomic properties
Oxidation states
Electronegativity
Ionization energies
Covalent radius
Van der Waals radius
Spectral lines
Spectral lines
Miscellanea
Crystal structure
Speed of sound
Thermal conductivity
Magnetic ordering
Magnetic susceptibility
CAS Number
History
Discovery
Named by
Main isotopes of oxygen
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 16O 99.76% stable 17O 0.04% stable 18O 0.20% stable
Iso­tope
16O
17O
18O
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Table rows:
cells: 0
Liquid oxygen boiling                              
General properties                              
O2, O3 (Ozone)                              
gas: colorless liquid: pale blue                              
[15.99903, 15.99977] conventional: 15.999                              
Oxygen in the periodic table                              
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 – ↑ O ↓ S nitrogen ← oxygen → fluorine                              
                              
– ↑ O ↓ S                              
                              Helium
Beryllium                         Boron Carbon Nitrogen Oxygen Fluorine Neon
Magnesium                         Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Calcium Scandium               Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Strontium Yttrium               Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
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
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
nitrogen ← oxygen → fluorine                              
8                              
group 16 (chalcogens)                              
period 2                              
reactive nonmetal                              
p-block                              
[He] 2s2 2p4                              
2, 6                              
Physical properties                              
gas                              
54.36 K ​(−218.79 °C, ​−361.82 °F)                              
90.188 K ​(−182.962 °C, ​−297.332 °F)                              
1.429 g/L                              
1.141 g/cm3                              
54.361 K, ​0.1463 kPa                              
154.581 K, 5.043 MPa                              
(O2) 0.444 kJ/mol                              
(O2) 6.82 kJ/mol                              
(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                              
1 10 100 1 k 10 k 100 k                         
   61 73 90                         
Atomic properties                              
2, 1, −1, −2                              
Pauling scale: 3.44                              
1st: 1313.9 kJ/mol 2nd: 3388.3 kJ/mol 3rd: 5300.5 kJ/mol (more)                              
66±2 pm                              
152 pm                              
Spectral lines                              
Spectral lines                              
Miscellanea                              
​cubic                              
330 m/s (gas, at 27 °C)                              
26.58×10−3 W/(m·K)                              
paramagnetic                              
+3449.0·10−6 cm3/mol (293 K)[1]                              
7782-44-7                              
History                              
Carl Wilhelm Scheele (1771)                              
Antoine Lavoisier (1777)                              
Main isotopes of oxygen                              
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 16O 99.76% stable 17O 0.04% stable 18O 0.20% stable                              
Abun­dance Half-life (t1/2) Decay mode Pro­duct                           
99.76% stable stable stable                           
0.04% stable stable stable                           
0.20% stable stable stable                           
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Questions about this table:
originalText: who is associated with the discovery of oxygen
answer: answerTexts: Carl Wilhelm Scheele