How was Potassium discovered?
Potassium was discovered in 1807 by Sir Humphry Davy. Sir Davy electrolyzed potassium hydroxide after exposing it to the air in his laboratory. After charning the potassium hydroxide, he charged it was batteries and found shiny metallic particles. He learned that the potassium particles catch fire as soon as they're exposed to the environment.
Potassium - Periodic Table of Videos
How is potassium used?
Potassium is used in salt substitutes and fertilizers. Other forms of potassium are also used in soaps, detergents, and some types of glass.
Where is potassium in nature?
Potassium makes up about 2.1% of the Earth's crust.
Potassium is soft enough to be cut with a knife
Potassium very reactive (stored in mineral oil to keep it from reacting)
The element potassium. (2015, December 7). Retrieved December 7, 2015, from
Potassium element facts. (2012, October 17). Retrieved December 7, 2015, from