the temperature inside my refrigerator is about 4 degrees Celsius if I place a balloon in my fridge that initially has a temperature of 22 celsius and a volume of .5 L what will be the volume of the balloon when it is fully cooled by my refrigerator

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.

H tricky one let me think and get back to u

Answersublimation;