|Atomic Mass||15.999 g.mol-1|
|Discovered by||Joseph Priestly in 1774|
Chemical Properties of Oxygen
|Group||16||Melting point||-219 °c|
|Period||2||Boiling point||-183 °c|
|Block||p||Density (g cm−3)||0.001308|
|Atomic number||8||Relative atomic mass||15.999|
|State at 20°C||Gas||Key isotopes||16O|
|Electron configuration||[He]2s2 2p4||CAS number||7782-44-7|
|ChemSpider ID||140526||ChemSpider is a free chemical structure database|
What is Oxygen?
- Oxygen is a member of the chalcogen group on the periodic table. It is an essential element in the most of the combustion processes.
- It is one of the most abundant elements in the Earth’s crust.
Uses of Oxygen
- It is used in the production and manufacturing of glass and stone products, and in mining.
- Special oxygen chambers are used in case of high pressure to increase the partial pressure of oxygen around the patient.
- The primary applications of oxygen include melting, refining, and manufacture of steel along with other metals.
Physical Properties of Oxygen
- The gas is colourless, odourless and insipid in a normal state. Liquid oxygen is slightly paramagnetic. It is reactive and forms oxides with every element except helium, neon, krypton, and argon. It is moderately soluble in water.
- Dioxygen is one of the common allotropes of oxygen.
- Trioxygen is the most reactive allotrope of oxygen that would cause damage to lung tissue. This allotrope is termed as ozone.
Other Important Information
- O-16, O-17, and O-18 are the three naturally occurring stable isotopes of Oxygen.
- Oxygen is characterized by a paramagnetic property.