Timeline of Atomic Theory

Atomic models of Dalton and Thomson

• John Dalton’s theory (1805)
• J.J Thomson’s theory (1897)

Ernest Rutherford’s atomic model

• How was he able to probe inside the atom?
• How did he build upon Thomson’s model?
• Gold foil experiment
• Limitations of Planetary Model

Wave Theory of Light

• Electromagnetic radiation
• Electromagnetic spectrum

Planck’s Quantum Hypothesis

• Max Planck’s theory (1900)
• Black body radiation
• Relationship between temperature and quantum
• The Planck Equation
• Photoelectric effect
• Quantum & photons

Spectrum of hydrogen