if each bottle contains 0.358 pt of mouthwash with a density of 0.876 g/ML how many kilograms of ethyl are in 114 bottles of mouthwash

The answer is b metal denting

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.