Pm

Promethium

Z 61 145.0 g/molLanthanide Radioactive

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes

Group

3

Period

6

Block

f

Occurrence

Synthetic

Biological Role

---

History

1945 (discovery)

Jacob A. Marinsky, Lawrence E. Glendenin, Charles D. Coryell

1963 (isolation)

F. Weigel

Named By

Grace Mary Coryell

Latin Name

Promethium

Abundance

Universe

x

Sun

x

Meteorites

x

Earth's crust

x

Oceans

x

Humans

x