Facts about the Classification of the Element Lanthanum
Lanthanum classified as an element in the Lanthanide series as one of the "Rare Earth Elements" which can located in Group 3 elements of the Periodic Table and in the 6th and 7th periods. The Rare Earth Elements are divided into the Lanthanide and Actinide series. The elements in the Lanthanide series closely resemble lanthanum, and one another, in their chemical and physical properties. Their compounds are used as catalysts in the production of petroleum and synthetic products.

Brief Facts about the Discovery and History of the Element Lanthanum
Lanthanum was discovered by Carl G. Mosander in 1839

Occurrence of the element Lanthanum in the Atmosphere
Obtained chiefly from monazite and bastnaesite

Common Uses of Lanthanum
Glass manufacture
Carbon lights for movie and television studio lighting
Camera lensesThe Properties of the Element Lanthanum

Name of Element : Lanthanum
Symbol of Element : La
Atomic Number of Lanthanum : 57
Atomic Mass: 138.9055 amu
Melting Point: 920.0 °C - 1193.15 °K
Boiling Point: 3469.0 °C - 3742.15 °K
Number of Protons/Electrons in Lanthanum : 57
Number of Neutrons in Lanthanum : 82
Crystal Structure: Hexagonal
Density @ 293 K: 6.7 g/cm3
Color of Lanthanum : silvery-white