The periodic table/Potassium

Nuvola apps edu science.svg Subject classification: this is a chemistry resource.
20percent.svg Completion status: this resource is ~20% complete.
38254-new folder-12.svg Type classification: this is an article resource.
Nuvola apps edu science.svg Educational level: this is a research resource.


Potassium was discovered by Sir Humphrey Davy in 1807. This alkali metal was the first metal that was isolated by electrolysis. The name comes from the Arabic word, القَلْيَه‎ (al-qali), meaning Plant Ashes.

Quick FactsEdit

Name: potassium atom

Symbol: K

Atomic Mass: 39

Classification: alkali metals

Protons: 19

Electrons: 19

Neutrons: 20

Color: silvery-white

Discovery in: 1807

Density: 0.89 g/cm3

Crystal Structure: cubic

Melting Point: 49 °C

Boiling Point: 774 °C

Common Uses: glass, soap, substitute for table salt, fertilizers, gunpowder, medical uses

See alsoEdit

  Search for Potassium on Wikipedia.

This element is a stub. Learn how you can help Wikiversity to expand it. (See other stubs here)