logoAround science

O - Oxygen - periodic table of the elements

Oxygen gas was discovered by Swedish pharmacist, Karl Scheele in 1771.  Comprising 87 percent of the oceans, one fifth of the atmosphere and six out of ten atoms on the crust, oxygen is the most abundant element on the surface of the earth.


Atomic number - 8 Density g/mL 0 .001429
Atomic weight u 15 .9994 Melting point K 50 .35
Bonding radius A 0 .73 Boiling point K 90 .18
Atomic radius A 0 .65 Heat of vaporization kJ/mol 3 .4099
Ionization Potential V 13 .618 Heat of fusion kJ/mol 0 .22259
Electronegativity - 3 .44 Specific heat J/gK 0 .92
The oxide is neutral.
Crystal are cubic.

Electron configuration: 1s2 2s2 2p4

Other elements of the periodic table

123456789101112131415161718

HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLa * HfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAc ** RfDbSgBhHsMt110111112113
Lanthanides* CePrNdPmSmEuGdTbDyHoErTmYbLu
Actinides ** ThPaUNpPuAmCmBkCfEsFmMdNoLr