Radium
Ra226.02541 g/mol Calculated
Also called Actinium-X, Element-Ra and Thorium-X.
The element Marie Curie isolated, once painted onto watch dials until the women who painted them fell ill. Its glow is its radioactivity. Element 88.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- Other namesfrom sourcePubChem / Wikidata
- 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
- Ra
- Molecular weight
- 226.02541 g/mol
Groups it belongs to
- Category
- Element & material
- Family
- Chemical elements
SMILES
[Ra]PubChem CID 6328144 · Wikidata Q1128 · InChIKey HCWPIIXVSYCSAN-UHFFFAOYSA-N · Data refreshed
Questions
- What is Radium?
- The element Marie Curie isolated, once painted onto watch dials until the women who painted them fell ill. Its glow is its radioactivity. Element 88.
Sources and notes
- Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
- Data refreshedfrom sourceMoleculeFinder2026-11-09