Which is the correct order of increasing energy of the listed orbitals

1.	Which is the correct order of increasing energy of the listed orbitals in the atom of titanium ?
Answer» 3s 3p 3d 4S 3s 3p 4s 3d 3s 4s 3p 3d 4s 3s 3p 3d Solution :`TI (Z = 22) = 1S^(2) 2s^(2) 2P^(6) 3s^(2) 3p^(6) 4s^(2) 3d^(2)` Hence, order of increasing energy of orbitals is 3s 3p 4s 3d

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