Quantum, atomic, and nuclear models
What students will learn
Choose bounded quantum models for photon interactions, atomic spectra, and nuclear change, using energy and conservation evidence.
Before this topic
- Wave interference and the electromagnetic spectrum
- Electric energy and circular motion
- Energy, momentum, and scientific notation
Read and connect
Read: Quantum Theory and Wave-Particle Duality →
Connect localized detections and interference with photon and matter-wave models and supplied boundary conditions.
Read: The Bohr Model of Atomic Structure →
Distinguish element, isotope, and ion, then use the limited single-electron Bohr model for energy states.
Read: Emission and Absorption Spectra →
Read occupied energy levels, match photon transitions, and distinguish electron from nuclear binding energy.
Read: Blackbody Radiation →
Separate a thermal spectrum’s peak from its complete area and total emitted power.
Read: The Photoelectric Effect →
Distinguish intensity from frequency and use a photoelectric threshold and stopping voltage.
Read: Compton Scattering →
Use energy and vector momentum for Compton scattering from an initially stationary free electron.
Read: Fission, Fusion, and Nuclear Decay →
Account for mass-energy, nuclear binding, fission and fusion, and statistical radioactive decay.
Read: Types of Radioactive Decay →
Write supplied decay modes with the particles required by charge, nucleon, and lepton bookkeeping.
Check understanding
Use the complete prompt to make student reasoning visible, then consult the separate worked reasoning and criteria. A reading completion tick records reading history.
Test a photoelectric stopping-voltage model →
Derive and construct a quantitative graph, infer its physical parameters, and describe controlled stopping-voltage measurements.
The line applies above the ordinary single-photon threshold; an extrapolated negative intercept is not an emitted negative kinetic energy.
Check complete beta-decay bookkeeping →
Write both supplied beta modes with neutrino partners, check conservation, and explain the particle properties and detection limit.
Neutrino treatment is the stated qualitative bookkeeping scope, without flavors or detailed weak-force mechanisms.
Standards and earlier reading lists
These topic placements organize reading. Edition-qualified Standards mappings and the existing complete unit task sets retain their reviewed scope.