Potassium

 =Potassium=


 * Atomic Number:** 19


 * Protons:** 19 


 * Electrons:** 20 


 * Neutrons:** 19


 * Average Atomic Mass:** 39.098. amu


 * Isotopes:**  K-39, K-40, K-41


 * Discovery:** Potassium was discovered by Sir Humphrey Davy in 1807.


 * Name:** It was from the English word "potash."


 * Uses:** Potassium are gathered from a number of sources.


 * Interesting Facts**: Did you know that one of the earliest uses of Potassium was soap.

media type="youtube" key="pPdevJTGAYY" height="344" width="425"
 * Video:**


 * Sources**
 * [|Potassium on WebElements]
 * [|History of Potassium]
 * [|Isotopes of Potassium on WebElement]
 * [|Naming of Potassium on Origins of the WebElements]
 * Photo: [|Olha a banana by .Mands.]
 * Video: [|Potassium from the Periodic Tale of Element on YouTube]