There are 17 elements which are considered to be rare-earth elements or rare-earth minerals. Why are these elements classified this way? Be specific.(2 points)
6 grade

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There are 17 elements which are considered to be rare-earth elements or rare-earth minerals.  Why are these elements classified this way? Be specific.(2 points)
6 grade

GPT-5 mini · Answer

The 17 rare‑earth elements are the 15 lanthanides (lanthanum, cerium ... lutetium, atomic numbers 57–71) plus scandium and yttrium. They are grouped together because they have very similar chemical properties and almost always occur together in the same ores, so they are mined and separated as a group. The name "rare earth" comes from older chemistry: their oxide minerals were called "earths" and were thought to be rare when first discovered (even though some are fairly abundant in the crust).

There are 17 elements which are considered to be rare-earth elements or rare-earth minerals. Why are these elements classified this way? Be specific.(2 points)
6 grade

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There are 17 elements which are considered to be rare-earth elements or rare-earth minerals. Why are these elements classified this way? Be specific.(2 points) 6 grade

All Answers 1