Promethium - Wikipedia
Promethium is a chemical element; it has symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 grams naturally occurring in the …
Promethium | Rare Earth Element, Atomic Number 61 | Britannica
promethium (Pm), chemical element, the only rare-earth metal of the lanthanide series of the periodic table not found in nature on Earth.
Promethium - Element information, properties and uses ...
Promethium is named after Prometheus of Greek mythology who stole fire from the Gods and gave it to humans. The image is based on a scene from an Ancient Greek vase. It depicts the …
Promethium Facts - Periodic Table of the Elements - ThoughtCo
May 11, 2025 · Promethium is a radioactive metal discovered in 1945 that is extremely rare on Earth. All promethium isotopes are radioactive, and they can produce x-rays through beta …
Periodic Table of Elements: Los Alamos National Laboratory
Searches for the element on earth have been fruitless, and it now appears that promethium is completely missing from the earth's crust. Promethium, however, has been identified in the …
Promethium: A Comprehensive Guide to Its Properties, Uses ...
Explore the fascinating world of Promethium, a rare and radioactive lanthanide. Learn about its unique properties, industrial uses like luminous paints and atomic batteries, its potential …
Promethium | Pm (Element) - PubChem
Chemical element, Promethium, information from authoritative sources. Look up properties, history, uses, and more.