Describe why the electronic configuration of chromium and copper is 3d^5 4s^1 and 3d^10 4s^1 and not 3d^4 4s^2 and 3d^9 4s^2 respectively ?
Describe why the electronic configuration of chromium and copper is 3d5 4s1 and 3d10 4s1 and not 3d4 4s2 and 3d9 4s2 respectively ?
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Due to stable electronic configuration of 3d5 & 3d10 as half filled & fully filled d-orbitals are most stable as compared to 3d4 & 3d9 . It is because of symmetrical distribution of electron density as well as greater transition energies.
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