La

LANTHANUM

Definition from 'lanthanien' or lie hidden or to escape notice. it is used in expensive camera lens.

Discovery 1839 by carl gustav masender by sweden

Uses carbon lightning application, iron products

Group of Elements Lanthanides(Solid)

Atomic Weight 138.90547

Oxidation State +3

Melting Point 920

Boiling Point 3454

Density 6.16 g/cm3

Electronegativity 1.1