The metal that belongs to Rare Earth Element category is
Show Hint
- Cerium
- Lithium
- Titanium
- Cobalt
The Correct Option is A
Solution and Explanation
Step 1: Define Rare Earth Elements (REEs).
REEs include 15 lanthanides plus scandium and yttrium. Cerium is part of the lanthanide series.
Step 2: Evaluate the options.
Cerium (Ce) is a well-known REE.
Lithium, Titanium, and Cobalt are transition or alkali metals but not classified as REEs.
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