Explore the connections
- Atomic structure
- The atomic nucleus
- Atomic orbitals
- Atomic energy levels
- Quantum numbers
- Pauli exclusion principle
- Hund's rule
- Aufbau principle
- Electron configuration
- Electron-configuration exceptions
- Valence electrons
These pages connect ideas that are often learned separately. Follow the links in any order: the goal is to see how atomic structure, measurable properties and physical laws explain one another.