How do electrons go between energy levels?

An electron in an atom isn’t a small object that moves between points. An electron is actually a spatially extended bundle with field energy that covers the entire area near the nucleus. Diagrams of the three-dimensional shapes of these fields, for hydrogen atoms or other atoms, might be familiar to you. Their “interaction probability density” can vary from one region. The electron can also be seen as a “cloud”, a collection of electron-positron fields surrounding the nucleus. Imagine one cloud being replaced by another when an atom moves from one energy level.

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