Electron orbits and energy levels illustrated with a Bohr atom showing electrons traveling in fixed circular orbits around a central nucleus, with clearly marked energy levels, demonstrating the concept of quantized electron shells on a bright blue background.
Discoveries & Inventions

Electron Orbits & Energy Levels: Bohr’s Revolutionary Discovery That Atoms Are Quantized

Imagine a solar system where planets could only orbit the sun at a handful of specific, permitted distances, never anywhere […]