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Metal and Alloys

Some interesting characteristics about the element scandium?

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December 17, 2008 5:32AM

scandium (SC) was discovered by Lars Fredrick Nilson in 1879. the atomic number is 21, in period 4, classified under metallic(metal), in group 3. it also has a density of 2.99 kg/cm[cubed]. its a silver-white color which devolpes a slightly yellowish or pinkish color when exposed to air.