HNO3 +S → H2SO4 + NO Next, determine how many electrons are involved in each half-reaction.
What information will you use to make this determination?
c oxidation
The number of electrons involved in each half-reaction is equal to the
numbers for each element as a result of reaction.

The answer is yes b ffgnbsfgnbnfgbnfgsnb

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.