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 Earth's crust at any given time.

promethium (Pm), chemical element, the only rare-earth metal of the lanthanide series of the periodic table not found in nature on Earth.

Element Promethium (Pm), Group 19, Atomic Number 61, f-block, Mass [145]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Apr 2, 2025 · Understanding promethium’s chemical properties could improve separation methods and open the door to new applications, facilitating the production of purer and larger quantities of the element. Currently, the Department of Energy Isotope Program is the sole global producer of promethium-147. Bonding Promethium with an Organic Molecule

Jun 8, 2017 · Named for the Greek Titan who stole fire from Zeus and gave it to humanity, glow-in-the-dark promethium is a highly radioactive, rare earth element. It is not found anywhere on Earth and is found...

Jan 31, 2018 · Promethium is a heavy, radioactive rare earth element. Here are interesting facts and the chemical and physical properties of the element promethium.

Promethium is radioactive element; metallic promethium is silvery white in color and its salts glow in the dark to produce pale blue or green light. Promethium chemical symbol is Pm with atomic number 61 and atomic weight is 145. Its melting point is 1042 O C, which is higher than neodymium and lower than samarium.

Promethium. Promethium is a chemical element with symbol Pm and atomic number 61. Classified as a lanthanide, Promethium is a solid at room temperature.

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 medical applications, and the safety precautions required.

Promethium shows promise as a portable X-ray source, and it may become useful as a heat source to provide auxiliary power for space probes and satellites. More than 30 promethium compounds have been prepared. Most are colored.