Multiple choice general knowledge science & technology

Rare earth elements are also known as:

  1. Lanthanides

  2. Noble elements

  3. Halogens

  4. Actinides
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A Correct answer
Explanation

Rare earth elements are primarily the lanthanide series (elements 57-71) plus scandium and yttrium. They are NOT noble elements, halogens, or actinides - those are completely different categories of elements.

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