Lanthanoid vs. Lanthanide
Lanthanoidnoun
(inorganic chemistry) lanthanide
Lanthanoidnoun
any element of the lanthanide series (atomic numbers 57 through 71)
Lanthanidenoun
(chemistry) Any of the 14 rare earth elements from cerium (or from lanthanum) to lutetium in the periodic table; because their outermost orbitals are empty, they have very similar chemistry; below them are the actinides.
Lanthanidenoun
Any rare earth element of the lanthanide series (atomic numbers 57 through 71).
Lanthanidenoun
any element of the lanthanide series (atomic numbers 57 through 71)
Lanthanide
The lanthanide () or lanthanoid () series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare-earth elements or rare-earth metals.
Lanthanoid Illustrations
