A Weather balloon has a volume of 52.5 Liters at a temperature of 22°C. The balloon is released and rises to an altitude where the temperature is -21°C. How does the temperature change affect the gas particle motion

Oh nskskakaaka

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.