Energy levels in an atom are special places where electrons can stay without losing energy. These levels are important because they affect how atoms interact with light and with each other.

Key Points:

• Energy Levels: Electrons can only be found in certain energy levels, which we label as $n=1, 2, 3...$ (where $n$ is a number representing the level).

• Electron Movements: When electrons move from one energy level to another, they either take in energy or give it off. This often happens as light particles called photons. For instance, if an electron goes from $n=2$ to $n=3$, it takes in energy. But if it moves from $n=3$ to $n=2$, it lets out energy.

• Why It Matters: These movements help explain things like the colors we see in atomic spectra, and they also help us understand how atoms bond and react with each other.

By understanding energy levels, we can better predict how atoms act in different situations!