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What Family Does Europium Belong To?

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Rare Earth Element
thanked the writer.
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N/A N/A commented
Wrong its lanthanoids. Good try though
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Anonymous commented
What is it rare earth element or lanthanoids?!?!?!?!?!?!?!?!?!?!?!?!?
Anonymous
Anonymous commented
What is it rare earth element or lanthanoids?!?!?!?!?!?!?!?!?!?!?!?!?

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