ChemGlobe: Erbium «
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/68.html | | Electronic , thermal , and steric data along with an isotope table. |
ChemicalElements. com: Erbium «
http://www.chemicalelements.com/elements/er.html | | Basic information , atomic structure , and isotopes. |
EnvironmentalChemistry. com: Erbium «
http://environmentalchemistry.com/yogi/periodic/Er.html | | Atomic structure , chemical and physical properties , and table of nuclides. |
Erbium «
http://www.scescape.net/~woods/elements/erbium.html | | Includes the history of the element , and a data sheet. |
It's Elemental: Erbium «
http://education.jlab.org/itselemental/ele068.html | | Basic physical and historical information. |
LANL: Erbium «
http://periodic.lanl.gov/elements/68.html | | Basic information and history. |
Lenntech: Erbium «
http://www.lenntech.com/Periodic-chart-elements/Er-en.htm | | Physical data , chemical properties , health and environmental effects. |
Visual Elements: Erbium «
http://www.chemsoc.org/viselements/pages/erbium.html | | Image , physical information , key isotopes , and ionisation energies. |
WebElements: Erbium «
http://www.webelements.com/webelements/elements/text/Er/key.html | | Extensive information on history , uses , occurrence , compounds , and properties. |
Wikipedia: Erbium «
http://en.wikipedia.org/wiki/Erbium | | Properties of the element , including its history , applications , and characteristics. |
