rare-earth elements
Rare-earth elements are a group of 17 chemical elements found in the periodic table. They include scandium, yttrium, and the lanthanides series. These elements share similar properties and are often referred to as rare because they are usually found in low concentrations in the Earth's crust. They play a crucial role in various modern technologies, including electronics, renewable energy, magnets, and catalysts, due to their unique magnetic, luminescent, and catalytic properties.
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