-
nouna white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
Similar:
type of:
Definition that contains lanthanum
- nd a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
- neodymium a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
- atomic number 60 a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
- lanthanide series the rare-earth elements with atomic numbers 57 through 71; having properties similar to lanthanum