Question

1. describe the energy levels of an atom and how an electron moves between them. be sure to describe how the electron absorbs and emits energy when it does so. draw on the picture if that helps you explain.

Explanation:

Atoms have discrete energy levels. Electrons occupy these levels. An electron moves to a higher - energy level by absorbing a photon with energy equal to the energy difference between the levels. When it moves to a lower - energy level, it emits a photon with energy equal to the energy difference of the levels. For example, in a lithium (Li) atom shown, electrons can transition between different electron - shell levels (1, 2 etc.).

Answer:

Atoms have quantized energy levels. Electrons absorb energy (usually in the form of photons) to move to higher energy levels and emit energy (as photons) when moving to lower energy levels. The energy of the absorbed or emitted photon is equal to the energy difference between the two levels involved in the transition.