•→ What is Scandium ?
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the chemical element of atomic number 21, a soft silvery-white metal generally included among the rare earth elements.
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- Scandium is a chemical element with the symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been classified as a rare-earth element, together with yttrium and the lanthanides. ... In the chemical compounds of the elements in group 3, the predominant oxidation state is +3.
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