Why does Scandium show only + 2 k + 3 oxidation state?
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Answer. It can form a +3 ion to achieve a noble gas configuration. The energy need for removing one more electron from Sc(+1) is very high, hence it it very difficult to form a +2 oxidation state. Therefore, the 3+ oxidation state is quite common for Scandium
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Oxidation state of scandium is +3. ... Scandium does not show +2 oxidation state as it requires high energy for removing one more electron is very high.
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