why Chromium has six unpaired electrons in its ground state.
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One unpaired electron. Electronconfiguration for chromium: [Ar] 4s1, 3d5. Six unpaired electrons. ... Thereis only a small energy difference between the 4s and 3d orbitals, so it isnot hard, from an energy standpoint, for a 4s electron to move to a 3d orbital.
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