The periodic table/Potassium
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Discovery
editPotassium was discovered by Sir Humphrey Davy in 1807. This alkali metal was the first metal that was isolated by electrolysis. The name comes from the Arabic word, القَلْيَه (al-qali), meaning Plant Ashes.
Quick Facts
editName: potassium atom Symbol: K Atomic Mass: 39 Classification: alkali metals |
Protons: 19 Electrons: 19 Neutrons: 20 Color: silvery-white |
Discovery in: 1807 Density: 0.89 g/cm3 Crystal Structure: cubic Melting Point: 49 °C Boiling Point: 774 °C Common Uses: glass, soap, substitute for table salt, fertilizers, gunpowder, medical uses |
See also
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