Answer
A) True
B) False
C) False
D) False
Work Step by Step
A) 3s is of a lower sublevel than 3p. Therefore, energy will be emitted
B) 4p is of a higher sublevel than 3p. Energy will not be emitted
C) 2p is of a higher sublevel than 2s. Energy will not be emitted
D) 2s is of a higher sublevel than 1s. Energy will not be emitted
