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Promethium
Sign in to saveAlso known as Pm, element 61, ₆₁Pm
chemisches Element mit dem Symbol Pm und der Ordnungszahl 61
OverviewAI-generated
Promethium is a chemical element with the symbol Pm and atomic number 61. It has an oxidation state of 3 and an electronegativity of 1.13. The element was discovered in 1945. Its canonical SMILES representation is [Pm], and its chemical formula is Pm. The Unicode character for promethium is 鉕.
The substance has a molecular weight of 144.91276 and a charge of 0. It possesses an ionic radius of 1.09. According to PubChem data, promethium has zero hydrogen bond donors and acceptors, and a topological polar surface area of 0. Its InChIKey is VQMWBBYLQSCNPO-UHFFFAOYSA-N.
In academic literature, there are 186 PubMed entries associated with the query "promethium". The subject is referenced by 746 other encyclopedia articles. A Commons category and gallery for the element are also available.
Synthesized by Vinony from 23 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Chemical data
- Formula
- Pm
- Molecular weight
- 144.91276 g/mol
- IUPAC name
- promethium
- SMILES
- [Pm]
- InChIKey
- VQMWBBYLQSCNPO-UHFFFAOYSA-N
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Research
186 papers- Promethium: To Strive, to Seek, to Find and Not to Yield.ReviewFrontiers in chemistry · 2020Elkina V, Kurushkin MDOI: 10.3389/fchem.2020.00588
- Observation of a promethium complex in solution.Nature · 2024Driscoll DM, White FD, Pramanik S et al.DOI: 10.1038/s41586-024-07267-6
- Reactor production of promethium-147.Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine · 2019Broderick K, Lusk R, Hinderer J et al.DOI: 10.1016/j.apradiso.2018.10.025
- Promethium bound: fundamental chemistry of an elusive element finally observed.Nature · 2024Kvashnina KODOI: 10.1038/d41586-024-01193-3
- Promethium puzzles.Nature chemistry · 2018Cantrill SDOI: 10.1038/s41557-018-0179-4
- Promethium-147 capacitor.Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine · 2009Kavetskiy A, Yakubova G, Lin Q et al.DOI: 10.1016/j.apradiso.2009.02.084
- Probing the subtle differences between promethium and curium.Nature communications · 2025Vogt TB, Simms ME, Parker CJ et al.DOI: 10.1038/s41467-025-58209-3
- How AI could improve robotics, the cockroach's origins, and promethium spills its secrets.Nature · 2024Thompson B, Gibney E, Graham FDOI: 10.1038/d41586-024-01610-7
via PubMed
Wikidata facts
- Instance of
- synthetic element
- Part of
- period 6
- Named after
- Prometheus
- Follows
- neodymium
- Image
- Promethium-147 solution.jpg
Show 18 more facts
- element symbol
- Pm
- Commons category
- Promethium
- topic's main category
- Category:Promethium
- atomic number
- 61
- oxidation state
- 3
- discoverer or inventor
- Charles D. Coryell
- location of discovery
- Oak Ridge National Laboratory
- time of discovery or invention
- 1945-01-01
- Commons gallery
- Promethium
- described by source
- Armenian Soviet Encyclopedia
- canonical SMILES
- [Pm]
- has characteristic
- radioactivity
- chemical formula
- Pm
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- Unicode character
- 鉕
- electronegativity
- 1.13
- ionic radius
- 1.09
- maintained by WikiProject
- WikiProject Elements
via Wikidata · CC0
Article · Deutsch
Promethium (von Prometheus, einem Titanen der griechischen Mythologie) ist ein chemisches Element mit dem Elementsymbol Pm und der Ordnungszahl 61. Im Periodensystem steht es in der Gruppe der Lanthanoide und zählt damit auch zu den Metallen der Seltenen Erden. Promethium wurde 1945 als Spaltprodukt des Urans entdeckt. Durch seine Entdeckung wurde die letzte Lücke im Periodensystem geschlossen. Alle Promethium-Isotope sind radioaktiv, das heißt, sämtliche Atomkerne, die 61 Protonen enthalten, sind instabil und zerfallen. Promethium und das leichtere Technetium (43) sind die einzigen Elemente mit kleinerer Ordnungszahl als Bismut (83), die diese Eigenschaft besitzen.
Abstract from DBpedia / Wikipedia · CC BY-SA
Gallery (17)
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