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What are the rare earth elements?

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Answer:

The rare earth elements are 17 proper elements, consisting of scandium, yttrium and the fifteen lanthanoids.

First answer by Onkelberry. Last edit by Onkelberry. Contributor trust: 0 [recommend contributor ]. Question popularity: 5 [Recommended].

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Is hassium a rare earth element?
Hassium is not a rare earth element; but is an artificial element, extremely rare and very difficult to obtain.
Is tin a rare element on earth?
Tin is actually the 49nt most common element on earth, so yes i guess you CAN say it is rare, its mostly found in Boliva, Zaire, Malaysia , Idonesia :)
Is iron a rare earth element?
No. The rare earth elements are scandium, yttrium and the Lanthanides, which have atomic numbers ranging from 57 to 70 (lanthanum, neodymium, samarium, etc.). The atomic number for iron is 26.
Is argon a rare earth element?
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)...
Is Phosphorus a rare earth element?
No, phosphorus is just a nonmetal element. ANSWER Phosphorus is the eleventh most abundant element in the Earth's crust at about 0.12% or 1000 ppm.