Uran

Also known as element 92, U

chemisches Element mit dem Symbol U und der Ordnungszahl 92

OverviewAI-generated

Uranium is a chemical element with the symbol U and atomic number 92. It has a mass of 238.02891 and a density of 19.05. The element was discovered in 1789. Its chemical formula is U, and it has an electronegativity of 1.38. The ionic radius is 1.17.

The IUPAC name for the element is uranium. It has a charge of 0 and a TPSA of 0. There are no hydrogen bond donors or acceptors. The canonical SMILES representation is [U]. The Unicode character for the element is 鈾. Other symbols include Ur.

Research on uranium is documented in PubMed, with a count of 16387. The PubChem CID is 23989. The InChIKey is JFALSRSLKYAFGM-UHFFFAOYSA-N. The element is referenced by 3,937 other encyclopedia articles.

Synthesized by Vinony from 24 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: U
Molecular weight: 238.0289 g/mol
IUPAC name: uranium
SMILES: [U]
InChIKey: JFALSRSLKYAFGM-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

16,387 papers

Uranium: The Nuclear Fuel Cycle and Beyond.ReviewInternational journal of molecular sciences · 2022Costa Peluzo BMT, Kraka EDOI: 10.3390/ijms23094655
Uranium Bioreduction and Biomineralization.ReviewAdvances in applied microbiology · 2017Wufuer R, Wei Y, Lin Q et al.DOI: 10.1016/bs.aambs.2017.01.003
Uranium Exposure in American Indian Communities: Health, Policy, and the Way Forward.ReviewEnvironmental health perspectives · 2021Redvers N, Chischilly AM, Warne D et al.DOI: 10.1289/EHP7537
A Review of Uranium-Induced Reproductive Toxicity.ReviewBiological trace element research · 2020Wang S, Ran Y, Lu B et al.DOI: 10.1007/s12011-019-01920-2
Uranium: an overview of physicochemical properties, exposure assessment methodologies, and health effects of environmental and occupational exposure.ReviewEnvironmental geochemistry and health · 2023Rathod AM, Verpaele S, Kelvin M et al.DOI: 10.1007/s10653-022-01293-x
Progress of uranium-contaminated soil bioremediation technology.ReviewJournal of environmental radioactivity · 2022Cheng C, Chen L, Guo K et al.DOI: 10.1016/j.jenvrad.2021.106773
Uranium's hazardous effects on humans and recent developments in treatment.ReviewEcotoxicology and environmental safety · 2025Faqir Y, Li Z, Gul T et al.DOI: 10.1016/j.ecoenv.2025.118043
Occurrence characteristics of uranium mineral-related substances in various environmental media in China: A critical review.ReviewJournal of hazardous materials · 2023Zhao B, Sun Z, Guo Y et al.DOI: 10.1016/j.jhazmat.2022.129856

via PubMed

Wikidata facts

Instance of: lithophile
Part of: actinide
Named after: Uranus
Mass: 238.02891
Image: Uranium2.jpg

Show 17 more facts

element symbol: Ur
Commons category: Uranium
topic's main category: Category:Uranium
atomic number: 92
density: 19.05
Commons gallery: Uranium
Unicode character: 鈾
canonical SMILES: [U]
chemical formula: U
electronegativity: 1.38
discoverer or inventor: Martin Heinrich Klaproth
has characteristic: radioactivity
time of discovery or invention: 1789-00-00
fabrication method: uraninite
ionic radius: 0.86
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
topic has template: Template:Infobox uranium

Sources (8)

via Wikidata · CC0

Article · Deutsch

Uran (benannt nach dem Planeten Uranus) ist ein chemisches Element mit dem Elementsymbol U und der Ordnungszahl 92. Im Periodensystem steht es in der Gruppe der Actinoide (7. Periode, f-Block). Uran ist ein Metall, dessen sämtliche Isotope radioaktiv sind. Natürlich in Mineralen auftretendes Uran besteht zu etwa 99,3 % aus dem Isotop 238U und zu 0,7 % aus 235U. Eine besondere Bedeutung erhielt Uran nach der Entdeckung der Kernspaltung im Jahre 1938. Das Uranisotop 235U ist durch thermische Neutronen spaltbar und damit – neben dem äußerst seltenen, aber aus Uran erzeugbaren Plutonium-Isotop 239Pu – das einzige natürlich vorkommende Nuklid, mit dem eine selbsterhaltende Kernspaltungs-Kettenreaktion möglich ist. Daher findet es Verwendung als Primärenergieträger in Kernkraftwerken und Kernwaffen.

Abstract from DBpedia / Wikipedia · CC BY-SA