Prometheum
Prometheum is one of the rare earth elements found in Row 6 of the periodic table. Elements in this group are also known as the lanthanides after the first element in that group, lanthanum....
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Promethium
Promethium is a lanthanide series element denoted by the atomic symbol Pm. It has an atomic number of 61 and anatomic weight of 146. Promethium is a silvery-white metal with a melting point...
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Promethium
Symbol
Pm
Atomic Number
61
Atomic Mass
144.9128
Family
Lanthanide (Rare Earth Metal) Pronunciation
pruh-MEE-thee-um
Overview
Promethium is one of the most fascinating of all chemical eleme...
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Prometheum
Promethium
Promethium