Am

Americium

Z 95 243.0 g/molActinide Radioactive

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes

Group

3

Period

7

Block

f

Occurrence

Synthetic

Biological Role

---

History

1944 (discovery)

Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso

1945 (isolation)

Burris B. Cunningham

Named By

Glenn T. Seaborg

Latin Name

Americium

Abundance

Universe

x

Sun

x

Meteorites

x

Earth's crust

x

Oceans

x

Humans

x