SAT Subject Physics Practice Question 615: Answer and Explanation
11. This question relates to the electron energy level diagram below. The questions are about a hydrogen electron located at E3.
What is the absorbed energy when it moves to E5?
Correct Answer: B
The correct answer is (B). The electron absorbs -.98eV of energy to jump from level 3 to level 5 (E3 - E5). The energy is negative because it is absorbed by the electron as it rises closer to zero potential and a possible escape from the nucleus.