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Facts about the
Classification of the Element Potassium
Potassium is classified as an "Alkali Metal" and located in Group
1 elements of the Periodic Table. An Element classified as an
Alkali Metal is a very reactive metal that does not occur freely
in nature. Alkali metals are soft, malleable, ductile, and are
good conductors of heat and electricity. Brief Facts about the
Discovery and History of the Element Potassium
Potassium was discovered by Sir Humphrey Davy in 1807. This alkali
metal was the first metal that was isolated by electrolysis.
Occurrence of the element Potassium
Makes up about 2.4% of the
weight of the Earth's crust
Seventh most abundant element
Found in ancient lakes and seas
Mined in USA, Germany & New Mexico
Density less than that of water
Rapidly oxidises in air Common Uses of
Potassium
Glass
Soap
Substitute for table salt
Medical
Fertilizers
Gunpowder
Potassium nitrate, chloride & permanganate
The Properties of the Element Potassium
Name of Element : Potassium
Symbol of Element : K
Atomic Number of Potassium : 19
Atomic Mass: 39.0983 amu
Melting Point: 63.65 °C - 336.8 °K
Boiling Point: 774.0 °C - 1047.15 °K
Number of Protons/Electrons in Potassium : 19
Number of Neutrons in Potassium : 20
Crystal Structure: Cubic
Density @ 293 K: 0.862 g/cm3
Color of Potassium : Silver-white |