Calcula la intensidad de corriente que pasa por una resistencia de 150 Ω si entre sus extremos aplicamos una diferencia de potencial de 18 V.

The teacher is mostly talking about the distillation of a mixture

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.

The answer is bhope this