I

Iodine

Z 53 126.904 g/molHalogen

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes

Group

17

Period

5

Block

p

Occurrence

Primordial

Biological Role

Micronutrient

History

1811 (discovery, isolation)

Bernard Courtois

Named By

Joseph Louis Gay-Lussac

Latin Name

Iodum

Abundance

Universe

x

Sun

x

Meteorites

x

Earth's crust

x

Oceans

x

Humans

x