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Electronic Configuration of Cu and Cr |
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Answer» Cu = 29 = 1s² 2s² 2p⁶ 3s² 4p⁶ 4s¹ 3d¹⁰ These electronic configuration are exceptional because electrons entered in 3-d ORBITALS WITHOUT filling the 4s orbitals complete. Reason for the Exceptions ⇒ It is said that d orbitals can be stable if it is HALF filled or full filled. |
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