Atomic World and Key Expts

1. Key Expt I: Double Slit Experiments

1.1 Light
... (a) Double slit expt of light
... (b) Reducing intensity => photons
1.2 Electrons
... (b) de Broglie's theory
... (a) Double slit expt of electrons



2. Key Expt II: Photoelectric Effect

2.1 Photoelectric effect experiment
2.2 Einstein's interpretation


3. Key Expt III: Alpha Scattering

3.1 Thompson's model
3.2 Alpha scattering expt
3.3 Rutherford's model


4. Key Expt IV: Spectral Lines

4.1 Emission and absorption spectrum
4.2 Discrete energy levels
4.3 Particular orbits


5. Why Particular Orbits? Bohr's Theory

5.1 Electron as standing wave on a ring
5.2 Hydrogen energy levels and line series
5.4 Review of Bohr's postulates
5.5 Review of atomic models


6. Nanoscale

6.1 Looking at the small world
... (a) Limitation of light microscopy
... (b) TEM
... (c) STM
6.2 Making things small
... (a) Nanomaterials
... (b) Area-volume effect
... (c) Lotus effect