Uranium
U238.0289 g/mol Calculated
The heaviest element that occurs in quantity in nature, and the fuel of every nuclear reactor and the first atomic bombs. Element 92.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- Formula and weightcomputedPubChem
- 2D drawingcomputedPubChem structure, drawn by RDKit
Where you encounter it
A pure element or an engineered material, rather than an ingredient in a product.
Sources and notes
- The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.
Properties and sources
Calculated by PubChem
- Molecular formula
- U
- Molecular weight
- 238.0289 g/mol
Reported Hazard label (GHS), ECHA, EU CLP Regulation, Safe Work Australia via PubChem
Danger Toxic pictogram (GHS06), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H300, H330, H373, H411, H413
Groups it belongs to
- Category
- Element & material
- Family
- Chemical elements
- Hazard classes
- Acutely toxic, Health hazard, Environmental hazard, GHS Danger
Questions
- What is Uranium?
- The heaviest element that occurs in quantity in nature, and the fuel of every nuclear reactor and the first atomic bombs. Element 92.
- How toxic is Uranium?
- Its GHS hazard label carries the signal word Danger and the hazard pictograms Toxic, Health hazard and Environmental. from source
- What kind of molecule is Uranium?
- Uranium has the formula U and a molecular weight of 238.029 g/mol. MoleculeFinder files it under chemical elements, in the element & material group. from sourcefrom sourcefrom sourcefrom source
Sources and notes
- Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
- Hazard labelfrom sourceECHA, EU CLP Regulation, Safe Work Australia via PubChemThe label combines these classifications.
- ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
- EU CLP Regulationfrom sourceAttributionSource: EUR-Lex, Regulation (EC) No 1272/2008, © European Union.
- Safe Work Australiafrom sourceAttributionSource: Safe Work Australia, Hazardous Chemical Information System, © Commonwealth of Australia, CC BY 4.0.
- Data refreshedfrom sourceMoleculeFinder2026-11-09
Keep exploring
Sources and notes
- The same kind of moleculefrom sourceMoleculeFinder curated groupsA structural neighbour in the same family or type group; the line names the group in its own words.
- The drawingscomputedPubChem structures, drawn by RDKit