hafnium: References & Edit History
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Article Contributors
Primary Contributors
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Erik Gregersen
Erik Gregersen is a senior editor at Encyclopaedia Britannica, specializing in the physical sciences and technology. Before joining Britannica in 2007, he worked at the University of Chicago Press on the Astrophysical Journal. Prior to that, he worked at McMaster University on the ODIN radio astronomy satellite project.
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Modified link of Web site: Lenntech - Hafnium - Hf. | May 29, 2026 | ||
| Add new Web site: Frontiers - Frontiers in Chemistry - Advances of hafnium based nanomaterials for cancer theranostics. | Sep 16, 2025 | ||
| Add new Web site: USGS Publications Warehouse - Zirconium and Hafnium. | Sep 06, 2024 | ||
| Added media. | Mar 01, 2024 | ||
| Add new Web site: National Center for Biotechnology Information - PubMed Central - Osteogenic and Biomedical Prospects of Hafnium and Its Compounds: A Scoping Review. | Dec 27, 2022 | ||
| Changed atomic weight from β178.49β to β178.486.β | Nov 04, 2020 | ||
| Corrected display issue. | Dec 18, 2019 | ||
| Add new Web site: The Periodic Table - The Element Hafnium. | Apr 15, 2019 | ||
| Add new Web site: LiveScience - Facts About Hafnium. | Feb 17, 2017 | ||
| Add new Web site: Royal Society of Chemistry - Periodic Table - Hafnium. | Feb 28, 2014 | ||
| Add new Web site: Chemicool - Hafnium. | Feb 28, 2014 | ||
| Add new Web site: Buzzle.com - Hafnium Facts. | Jun 24, 2013 | ||
| Add new Web site: EnvironmentalChemistry.com - Hafnium. | Jun 24, 2013 | ||
| Add new Web site: Lenntech - Hafnium - Hf. | Jun 24, 2013 | ||
| Add new Web site: WebElements - Hafnium. | Jun 24, 2013 | ||
| The word "lanthanide" was modified to "lanthanoid." | Jan 25, 2011 | ||
| Article revised and updated. | Apr 17, 2009 | ||
| Combined with hafnium section of "transition element" article. | Jan 29, 2009 | ||
| Added new Web site: Los Alamos National Laboratory - Hafnium. | May 05, 2008 | ||
| Added new Web site: University of California - Los Alamos National Laboratory - Hafnium. | Jun 11, 2007 | ||
| Article revised and updated. | Apr 12, 2007 | ||
| Article revised. | Dec 31, 1998 | ||
| Article added to new online database. | Jul 20, 1998 |
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