Which is the correct order of increasing energy of the listed orbitals in the atom of titanium ? (At. No. Z = 22)

Options

A. `3s 3p 3 d 4s`
B. `3s 3p 4s 3d`
C. `3s 4s 3p 3d`
D. `4s 3s 3p 3d`

Answer

B

Explanation

`Ti(22) = 1 s^(2) 2 s^(2) 2 p^(6) 3 s^(2) 3 p^(6) 4 s^(2) 3 d^(2)`
Order of energy is `3s 3 p 4s 3d`