potassium

chemistry

what is potassium?




  1. the chemical element of atomic number 19, a soft silvery-white reactive metal of the alkali-metal group.




Facts

1-Pure potassium is extremely reactive to both air and water, and needs to be stored in mineral oil.2- it could be easily sliced

3- it is a solid metal in the alkali group

4- it is the 8th most abundant element in the wold

5- its atomic number is 19

6- its atomic mass is 39.0983

uses of potassium and history

1-fertilizers 2-potassium salts are important like nitrate ,carbonate and chloride 3- in 1806 english chemist sir humphry davy discovered potassium. 4- It is commonly used in fireworks 5- potassium hydroxide is also used for soaps Although potassium is the eighth most abundant element on earth and comprises about 2.1% of the earth's crustMetallic potassium was first isolated by Sir Humphry Davy in 1807 through the electrolysis of molten caustic potash