Question

define lanthanoids in 2 points​

Answer 1

Answer:

The lanthanide (/ˈlænθənaɪd/) or lanthanoid (/ˈlænθənɔɪd/) series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium.

Elements: Gadolinium; Holmium; Lutetium; Lanthanum...

Answer 2

any of the series of fifteen metallic elements from lanthanum to lutetium in the periodic table (atomic numbers 57–71).

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