K+-+Potassium

Jacqueline Philp

Name: Potassium Symbol: K Atomic Number: 19 Atomic Mass: 39.0983 Standard State: solid at 298 Group name: Alkali Metal Period in Periodic Table: 4 Color:silvery white Classification: Metallic

Potassium was discoverd by Sir Humphrey Davy in England at 1807. It is found in most soil and is 1.5% of earth's crust. The metal is so soft that you can cut it with a knife.Potassium will light on fire when water is mixed with it. It is used for fertilizer.