Aluminum Atom Structure - Bohr Model Diagram Explained #3881474 (License: Personal Use)

This diagram illustrates the Bohr model of a neutral aluminum atom (atomic number 13), featuring a central nucleus labeled “Al” surrounded by three concentric electron shells. The innermost shell holds 2 electrons, the second holds 8, and the third (valence) shell contains 3 electrons-consistent with aluminum’s position in group 13 of the periodic table. The representation emphasizes quantized energy levels and electron configuration for educational purposes.

Used in high school or introductory college chemistry resources to teach atomic structure, electron configuration, and periodic trends; supports lessons on metallic bonding and reactivity based on valence electrons.