At

Astatine

Z 85 210.0 g/molMetalloid Radioactive

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes

Group

17

Period

6

Block

p

Occurrence

From decay

Biological Role

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History

1940 (discovery)

Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segrè

Named By

Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segrè

Latin Name

Astatium

Abundance

Universe

x

Sun

x

Meteorites

x

Earth's crust

x

Oceans

x

Humans

x