ChemGlobe: Lanthanum - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/57.html
Electronic, steric, and thermal data along with an isotopes table. |
ChemicalElements.com: Lanthanum - http://www.chemicalelements.com/elements/la.html
Basic information, atomic structure, and isotopes. |
EnvironmentalChemistry.com: Lanthanum - http://environmentalchemistry.com/yogi/periodic/La.html
Atomic structure, chemical and physical properties, and table of nuclides. |
It's Elemental: Lanthanum - http://education.jlab.org/itselemental/ele057.html
Basic physical and historical information. |
LANL: Lanthanum - http://periodic.lanl.gov/elements/57.html
Sources, properties, isotopes, and uses. |
Lenntech: Lanthanum - http://www.lenntech.com/Periodic-chart-elements/La-en.htm
Physical data, chemical properties, health and environmental effects. |
Visual Elements: Lanthanum - http://www.chemsoc.org/viselements/pages/lanthanum.html
Image, appearance, source, uses, and general and physical information. |
Wikipedia: Lanthanum - http://en.wikipedia.org/wiki/Lanthanum
Properties of the element, including its history, applications, and characteristics. |