Atomic Physics and Bohr Model
Learning Objectives
- Students will be able to describe the structure of atoms using the Bohr model
- Students will be able to explain electron energy levels and transitions
- Students will be able to interpret emission and absorption spectra
Core Concepts
- Bohr model
- Energy levels
- Electron transitions
Formulas
$$E_n = \frac{-13.6 \; \text{eV}}{n^2}$$
Energy of electron in nth Bohr orbit of hydrogen
$$\Delta E = E_i - E_f = hf$$
Energy difference between levels equals photon energy
$$r_n = n^2 \times 0.53 \; \text{\AA}$$
Radius of nth Bohr orbit for hydrogen
Units
| Electron volt | eV |
| Angstrom | Å |
Interesting Fact
The Bohr model correctly predicts hydrogen's spectrum but fails for larger atoms
Key Scientist
Ernest Rutherford
Discovered the atomic nucleus through the gold foil experiment
Ancient Wisdom
Quantized states mirror the spiritual concept that consciousness and reality exist in discrete states of being, not continuous gradations.
Want to truly master this? Try the interactive lesson!
Start Lesson