The Periodic Table/8 - Oxygen (O)

Element Oxygen (O, 8)

Here you can read more about the chemical element Oxygen. Its shemical symbol is O and its atomic number is 8. The relative atomic mass of Oxygen is 15.9994 u. The elemental classification of Oxygen is Diatomic nonmetals, and it belongs to group 16 and period 2 in the Periodic Table of Elements.

The density of Oxygen is 1.429 kg/m3. The melting point of Oxygen is 50.35 Kelvin (-222.65 ℃). The boiling point of Oxygen is 90.18 Kelvin (-182.82 ℃). Oxygen was discovered in the year 1772 by Carl Wilhelm Scheele.

To the right (or below if you are using a mobile device with a smaller screen) you will find the information given above for the element Oxygen ordered in tabular form, which might be easier to read and use if you want to quantify it in some sort.

Data about element Oxygen

Chemical symbol
Element classification
Diatomic nonmetals
Atomic number
Relativ atomic mass
Atomic mass
15.9994 u
1.429 kg/m3
Melting point
50.35 K   (-222.65 ℃)
Boiling point
90.18 K   (-182.82 ℃)
Discovered year
Discovered by
Carl Wilhelm Scheele