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Is argon a rare earth element?

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Answer:

No, argon is not part of the group known as rare earth elements. Rare earth elements are a series of 15 elements known as the lanthanides, (atomic numbers 57 through 71 - lanthanum through lutetium) and include yttrium (atomic number 39) and scandium (atomic number 21). They fall under the category of metals. Argon is a gas.

First answer by ID1269529976. Last edit by ID1269529976. Question popularity: 1 [recommend question].

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