K

Potassium

Z 19 39.098 g/molAlkali Metal

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes

Group

1

Period

4

Block

s

Occurrence

Exploding massive stars 81%Exploding white dwarfs 19%Geochemical class: Lithophile

Biological Role

Humans: MacronutrientPlants: EssentialMicrobes: Essential

History

1807 (discovery, isolation)

Humphry Davy

Named By

Humphry Davy

Latin Name

Kalium

Abundance

Solar System

x

Sun

x

Meteorites

x

Earth's crust

x

Oceans

x

Humans

x