- Visual Elements: Fermium - http://www.chemsoc.org/viselements/pages/fermium.html
- Image, discovery, physical information, and ionisation energies.
- ChemicalElements.com: Fermium - http://www.chemicalelements.com/elements/fm.html
- Basic information, diagram of atomic structure, and facts.
- It's Elemental: Fermium - http://education.jlab.org/itselemental/ele100.html
- Basic physical and historical information.
- EnvironmentalChemistry.com: Fermium - http://environmentalchemistry.com/yogi/periodic/fm.html
- Atomic structure, chemical and physical properties, and table of nuclides.
- Lenntech: Fermium - http://www.lenntech.com/periodic-chart-elements/fm-en.htm
- Physical data and chemical properties.
- LANL: Fermium - http://periodic.lanl.gov/elements/100.html
- History, properties, and isotopes.
- ChemGlobe: Fermium - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/100.html
- Electronic and thermal data along with an isotope table.
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