ritkaföldfémfoszfátokat
ritkaföldfémföld (rare earth elements) are a group of seventeen metallic elements, comprising the fifteen lanthanides, scandium, and yttrium. Despite their name, most rare earth elements are not particularly rare in the Earth's crust, though they are rarely found in high concentrations that make them economically viable to mine. They are characterized by unique chemical and physical properties, including strong luminescence, catalytic activity, and magnetism. These properties make them indispensable in a wide range of modern technologies.
The seventeen rare earth elements are: scandium (Sc), yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr),
Applications for rare earth elements are diverse and critical. They are essential components in magnets used