The Periodic Table/19 - Potassium (K)

Element Potassium (K, 19)

Here you can read more about the chemical element Potassium. Its shemical symbol is K and its atomic number is 19. The relative atomic mass of Potassium is 39.0983 u. The elemental classification of Potassium is Alkali metals, and it belongs to group 1 and period 4 in the Periodic Table of Elements.

The density of Potassium is 862 kg/m3. And the mineral hardness of Potassium is 0.4 Mohs. The melting point of Potassium is 337 Kelvin (64 ℃). The boiling point of Potassium is 1030 Kelvin (757 ℃). Potassium was discovered in the year 1807 by Humphry Davy.

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 Potassium ordered in tabular form, which might be easier to read and use if you want to quantify it in some sort.

Data about element Potassium

Chemical symbol
Element classification
Alkali metals
Atomic number
Relativ atomic mass
Atomic mass
39.0983 u
862 kg/m3
Melting point
337 K   (64 ℃)
Boiling point
1030 K   (757 ℃)
Mineral hardness
0.4 Mohs
Discovered year
Discovered by
Humphry Davy