Write the formulas for the analogous species of the elements of period 3; would you expect them to have the same hybridization at the central atom?

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.

What record? the question is incomplete