Einsteinium
Links
Visual Elements: Einsteinium
http://www.chemsoc.org/viselements/pages/einsteinium.html
Discovery, general and physical information, and ionisation energies.
ChemicalElements.com: Einsteinium
http://www.chemicalelements.com/elements/es.html
Basic information, atomic structure, and table of isotopes.
It's Elemental: Einsteinium
http://education.jlab.org/itselemental/ele099.html
Basic physical and historical information.
Einsteinium
http://www.scescape.net/~woods/elements/einsteinium.html
Data tables and historic information.
EnvironmentalChemistry.com: Einsteinium
http://environmentalchemistry.com/yogi/periodic/Es.html
Atomic structure, chemical and physical properties, and table of nuclides.
WebElements: Einsteinium
http://www.webelements.com/webelements/elements/text/Es/key.html
Extensive information on history, compounds, and properties.
Lenntech: Einsteinium
http://www.lenntech.com/Periodic-chart-elements/Es-en.htm
Physical data and chemical properties.