potassium

Element symbol -**K** Atomic **#** -**19** Most common mass **#** **-39** Physical state at room temperture- **at 20°C & 1atm** Meaning of the element name -**Comes from kalium the midieval latin for potash which may have derived from the arabic word quali meaning alkali** Uses of element- **Glass, Soap, Salt** How the element was discovered -**Sir humphrey Davy found in London, England** Physical properties of element -**Silvery, White, Solid, Hardness (0.5)** Chemical properties of element - **Density 0.856-, Melting Point- 336.5, Boiling Point** **-1038.7** Common compound of element- **Potassium Flouride, Potassiun Hydroxide, Potassium Nitrate** Common ions of element- **None** Isotypes of the element- **potassium** Sources -[|www.webelements.com], http://lpi.oregonstate.edu/infocenter/minerals/potassium/, http://www.infoplease.com/ce6/sci/A0839887.html Another Link To An Elements Site- [|www.webelements.com/boron] Extra Credit-http://www.scienceman.com/pgs/video_0019_permanganate_fountain.htm