![Potassium Metal](http://sciencelab.co.ke/cdn/shop/products/images_1a121388-4ab5-4469-9310-1757e81c4960_{width}x.jpg?v=1565786623)
Potassium is a chemical element with the symbol K and atomic number 19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.
Symbol: K