Potassium is a chemical element; it has symbol K and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.
Potassium metal Chemical in pakistan
Electron configuration: [Ar] 4s¹
Atomic number: 19
Appearance: silvery white, faint bluish-purple hue when exposed to air
Covalent radius: 203±12 pm
Heat of fusion: 2.33 kJ/mol
Available: Unlimit
