lanthanum lietuviškai

Paaiškinimas anglų kalba

• a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
• Lanthanum. The prototypical element in the rare earth family of metals. It has the atomic symbol La, atomic number 57, and atomic weight 138.91. Lanthanide ion is used in experimental biology as a calcium antagonist; lanthanum oxide improves the optical properties of glass.