Principal Energy Level

Amplitude Atomic Emission Spectrum Atomic Orbital Aufbau Principle Electromagnetic Radiation Electromagnetic Spectrum Electron Configuration Electron Dot Diagram Energy Level Excited State Frequency Ground State Heisenberg Uncertainty Principle Hunds Rule Pauli Exclusion Principle Photoelectric Effect Photon Principal Quantum Number Quantum Quantum Mechanical Model Quantum Number Sublevel Valence Electron Wavelength