Direction Check: Always verify the direction of electron movement. If the question mentions 'emitting radiation,' the electron MUST be moving toward the nucleus (higher to lower level).
Energy Correlation: Remember that 'higher energy' always means 'further from the nucleus.' Students often confuse this and assume closer orbits have more energy because they are 'faster' or 'tighter,' which is incorrect in this context.
Color Production: If asked how different colors are produced, explain that different 'jumps' between levels involve different amounts of energy. Larger energy drops produce higher-energy radiation (like violet light), while smaller drops produce lower-energy radiation (like red light).
Dark Objects: When explaining why dark objects are good absorbers, note that they appear dark because they absorb most incoming EM radiation rather than reflecting it back to the observer.
Continuous Energy: A common mistake is thinking electrons can absorb any amount of energy and move to any distance. In reality, they can only move between specific, fixed energy levels.
Proton Movement: Never suggest that protons move during these processes. Protons are fixed in the nucleus; only electrons move between energy levels during absorption and emission.
Instantaneous vs. Delayed: While absorption is often immediate upon impact, emission happens after the electron becomes unstable. It is not always a simultaneous reflection.
