i need help on this Chemistry

Question

3. Consider the diagram “A” above. Is energy absorbed or released for the electron transition shown? Explain.

4. Which of the diagrams above depicts an electron transition involving the most energy? Explain.

Answer 1

3). In diagram A, energy is released. The electron is in an excited state as it exists in the 6th energy level, and so when it "falls" to the 2nd energy level (a lower energy than n=6), energy is released.

4). A depicts the most energy and this is based on 2 observations. First, it has the greatest difference in energy levels, i.e. it falls 4 levels (from 6 to 2). The others do not fall that many energy levels. Secondly, if you look at the frequency, you see it has the lowest frequency, which equates to the longest wavelength which equates to the most energy. (recall E = hν).