Potassium is located on the fourth row of the first column in the periodic table of elements. Its appearance is silvery gray with a melting point of 63 degrees Celsius. Potassium continues the increasing trend of reactivity in the alkali metals by being even more reactive than Sodium. It normally can form up to one bond with another atom. Potassium has 3 main isotopes; 39, 40, & 41. Potassium 39 is the most common isotope making up about 93.258% of all Potassium on Earth. The other stable isotope of Potassium, Potassium 41, makes up about 6.730%. Finally, radioactive Potassium 40 makes up the rest. (about 0.011%) Under a Bunsen burner, it is a lilac color.

Potassium has some important uses. For example, Potash (a variety of naturally existing Potassium salts), is an important fertilizer for plants. Potassium is also a requirement in the manufacturing of soaps, pharmaceuticals, glass, and many other goods.  It may have more uses in the future in the form of Potassium-ion batteries. They are less damaging to the environment than Lithium since Potassium is way more common.