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Applying Aufbau principle, write down the electronic configuration of Sc (Z = 21) and Zn (Z = 30). |
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Answer» Solution :(1) According to Aufbau principle, the electron first fills the 4s orbital before 3d orbital. (i) `Sc (Z = 21) 1S^(2) 2s^(2) 2p^(6) 3S^(2) 3P^(6) 4s^(2) 3d^(1)` (i) `ZN (Z = 30) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(2) 3d^(10)` |
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