Definition of Promethium. Meaning of Promethium. Synonyms of Promethium

- Promethium is a chemical element with symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600...
- Promethium (61Pm) is an artificial element, except in trace quantities as a product of spontaneous fission of 238U and 235U and alpha decay of 151Eu, and...
- up Promethium or promethium in Wiktionary, the free dictionary. Promethium is a chemical element with symbol Pm and atomic number 61. Promethium may...
- promethium dials also dropped by half every 2.62 years, giving them a short useful life, which led to promethium's replacement by tritium. Promethium-based...
- Promethium nitride is a binary inorganic compound of promethium and nitrogen with the chemical formula PmN. PmN crystals are of cubic system with Fm3m...
- and Madame Rouge. During this time, he invents a form of uranium called Promethium which is used by Deathstroke and Vic Stone/Cyborg. In Swamp Thing (vol...
- half of the 20th century, radium was progressively replaced with promethium-147. Promethium is only a relatively low-energy beta-emitter, which, unlike alpha...
- Promethium(III) sulfide is a binary inorganic compound with the chemical formula Pm2S3. The compound can be prepared by reacting promethium and sulfur...
- Promethium(III) oxalate is an oxalate of promethium, with the chemical formula Pm2(C2O4)3. Its decahydrate crystallizes in the monoclinic crystal system...
- Promethium monosulfide is a binary inorganic compound with the chemical formula PmS. The compound forms crystals structurally isomorphous with NaCl. Macintyre...