Answer
Energy would be emitted when the hydrogen electron moves from n = 4 to n = 2.
Work Step by Step
Just remember that:
- Energy must be absorbed to move an electron from a lower state (lower energy) to a higher state (higher energy).
- Energy would be emitted as an electron moves from a higher state (higher energy) to a lower state (lower energy).
Going from n = 4 to n = 2 means moving from a higher state to a lower state. Therefore, energy would be emitted.
