Atomic Excitation Process - Electron Transition & Photon Absorption #33489 (License: Personal Use)

This schematic depicts the quantum mechanical process of atomic excitation: a ground-state atom absorbs a photon, promoting an electron from an inner orbit to an outer, higher-energy shell. The red wavy arrow symbolizes the incoming photon’s energy matching the exact difference between quantized energy levels. The nucleus is shown with protons (red) and neutrons (blue), while black dots represent electrons in discrete orbits.

Used in educational physics or chemistry content explaining Bohr model transitions, absorption spectra, or laser fundamentals; targets students, educators, and science enthusiasts seeking conceptual clarity on quantum jumps.