If the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the univers
from the ideal gas law?
A) the temperature of the gas
B) the molar volume of the gas
C) the molar mass of the gas
D) the partial pressure of the gas

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.