Meaning of LANTHANUM in English


Name: lanthanum

Symbol: La

Atomic number: 57

Atomic weight: 138.9055 (2) g

Group in periodic table:

Group name:

Period in periodic table: 6 (lanthanoid)

Block in periodic table: f-block

CAS registry ID: 7439-91-0

Lanthanum is silvery white, malleable, ductile, and soft enough to be cut with a knife. It is one of the most reactive of the rare-earth metals. It oxidises rapidly when exposed to air. Cold water attacks lanthanum slowly, and hot water attacks it much more rapidly. The metal reacts directly with elemental carbon, nitrogen, boron, selenium, silicon, phosphorus, sulphur, and with halogens. It is a component of, misch metal (used for making lighter flints).

Chemistry of the elements English vocabulary.      Английский словарь химии элементов.