Solid lithium chloride decomposes into chlorine gas and solid lithium. what's the balanced equation for this reaction?

Ithink the answer is 56.

100%sorry if i’m wronghope this good luck: )

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.