(la) lantan

listen to the pronunciation of (la) lantan
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(Nükleer Bilimler) lanthanum
A metallic chemical element (symbol La) with an atomic number of 57
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
Atomic weight 138
and was so named from the difficulty of separating it from cerium, didymium, and other rare elements with which it is usually associated
{i} (La) rare metallic element (Chemistry)
It occurs in certain rare minerals, as cerite, gadolinite, orthite, etc
A rare element of the group of the earth metals, allied to aluminium
Symbol La