Please help Boiling off a pot of water
A pot containing 500 g of water is brought to a boil.
The latent heat of vaporization is for water HΔv =2260 kJ/kg

How much heat will it take to completely boil the water (turn it all to steam).

Use the equation q = mHΔv

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.

Perimeter? wheres the answers