The atomic number of potassium is 19. The atomic mass is 39.1.
Properties of Potassium:
Density- 0.86 g.cm -3 at 0 °C, Melting Point- 63.2 °C, Boiling Point- 760 °C, Iconic Radius- 0.133 (+1), Isotopes- 5, Electronic Shell- [ Ar ] 4s1, Energy of First Ionisation- 418.6 kJ.mol -1
Potassium is an Alkali Metal.
Potassium is used for It plays an important role in the physical fluid system of humans and it assists nerve functions. Potassium, as the ion K+, concnetrate inside cells, and 95% of the body's potassium is so located. When our kidneys are somehow malfunctioning an accumulation of potassium will consist. This can lead to disturbing heartbeats.
Potassium can be found in vegetables, fruit, potatoes, meat, bread, milk and nuts.