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rhodium
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A periodic table element tile for rhodium shows atomic number 45, symbol Rh, atomic weight 102.90549, electron configuration, and notes it is a solid transition metal with a face-centered cubic crystal structure and equal relative strength. Explore an interactive periodic table of the elements rhodium A reaction cycle diagram shows the catalytic hydrogenation of alkenes by a rhodium complex with triphenylphosphine ligands and solvent molecules. Each step is represented by a chemical structure, with arrows indicating the sequence from the rhodium catalyst binding hydrogen, reacting with an alkene, and forming a saturated alkane product before regenerating the catalyst.
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rhodium: References & Edit History

Article Contributors

Primary Contributors

  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Add new Web site: IOPscience - Journal of Physics: Conference Series - Instrumental neutron activation analysis of high purity rhodium (PDF). Nov 01, 2026
Add new Web site: AIP Publishing - AIP Advances - Thermodynamic properties of rhodium—A first principle study. Nov 07, 2025
Add new Web site: RSC Publishing - Journal of Materials Chemistry A - The nature and effects of rhodium and antimony dopants on the electronic structure of TiO2: towards design of Z-scheme photocatalysts†. Aug 14, 2025
Add new Web site: National Center for Biotechnology Information - PubMed Central - The Highest Oxidation State of Rhodium: Rhodium(VII) in [RhO3]+. May 07, 2025
Add new Web site: Nature - Nature Chemistry - Rhodium roles. Dec 06, 2024
Add new Web site: NIST Technical Series Publications - Melting, mechanical working, and some physical properties of rhodium. Oct 09, 2024
Media added. Mar 05, 2024
Add new Web site: National Center for Biotechnology Information - PubMed Central - The Highest Oxidation State of Rhodium: Rhodium(VII) in [RhO3]+. Sep 28, 2022
Add new Web site: The Periodic Table - The Element Rhodium. Apr 30, 2021
Corrected display issue. Jun 13, 2019
Add new Web site: LiveScience - Facts About Rhodium. Feb 17, 2017
Add new Web site: Royal Society of Chemistry - Periodic Table - Rhodium. May 04, 2014
Add new Web site: Chemicool - Rhodium. May 04, 2014
Add new Web site: Chemical Elements.com - Rhodium. Jun 03, 2013
Article revised and updated. Apr 17, 2009
Combined with rhodium section of "transition element" article. Jan 29, 2009
Added new Web site: Webelements.com - Rhodium. Jul 21, 2008
Added new Web site: Royal Society of Chemistry - Rhodium. Jul 21, 2008
Added new Web site: EnvironmentalChemistry.com - Rhodium. Jul 21, 2008
Added new Web site: Los Alamos National Laboratory - Rhodium. May 05, 2008
Added new Web site: Lenntech - Rhodium.
  • Gaurav Shukla
 Jun 08, 2007
Added new Web site: Spectrum - Rhodium. May 03, 2007
Article revised and updated. Apr 12, 2007
Article added to new online database. Jul 20, 1998
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