The electronic configuration of chromium (Cr²⁴) written as [Ar] 3d⁴ 4s² . Is it correct ? Give reason
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Electronic configuration of Cr is [Ar]3d5 4s1, instead of the expected [Ar]3d4 4s2. This is so because half filled d orbitals have extra stability. So in case of Cr, one electron from the 4s orbital goes to the 3d orbital to make it half filled, and Cr attains extra stable state.
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