Lanthanide

Meaning

Noun

●

In Chemistry & Types of chemical element:

Any of the 15

from

in the

; because their

are not

, they have very

; below them are the actinides.

●

In Chemistry & Types of chemical element:

Any of the 14

from

(lutetium is

by some

a d-block

an f-block element).

●

In Chemistry & Types of chemical element:

Any of the 14

rare earth elements

from

cerium

lutetium

(lanthanum having been

excluded

because it was

thought

to be a d-block

element

in the past).

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Lanthanide

Meaning

Noun

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