Oxygen,  8O
Spectral lines of oxygen
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକoxygen, O
Appearancecolorless gas; pale blue liquid. Oxygen bubbles rise in this photo of liquid oxygen.
ଉଚ୍ଚାରଣ/ˈɒks[invalid input: 'ɨ']ən/ OK-si-jən
Oxygen in the periodic table
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
-

O

S
nitrogenoxygenfluorine
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)8
ଶ୍ରେଣୀ, ବ୍ଳକgroup 16 (chalcogens), p-block
ପର୍ଯ୍ୟାୟperiod 2
ମୌଳିକ ପ୍ରକାର  nonmetal
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)15.999(4)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[He] 2s2 2p4
per shell
2, 6
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାgas
ଗଳନାଙ୍କ54.36 K ​(-218.79 °C, ​-361.82 °F)
ସ୍ଫୁଟନାଙ୍କ90.20 K ​(-182.95 °C, ​-297.31 °F)
ଘନତା at stp (0 °C and 101.325 kPa)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
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K)       61 73 90
Atomic properties
Oxidation states2, 1, −1, −2
ElectronegativityPauling scale: 3.44
energies
(more)
Covalent radius66±2 pm
Van der Waals radius152 pm
Miscellanea
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
ଇତିହାସ
ଆବିଷ୍କାରCarl Wilhelm Scheele (1772)
Named byAntoine Lavoisier (1777)
Most stable isotopes of oxygen
iso NA half-life DM DE (MeV) DP
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
| references

References