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The Evolution of Quantum Mechanics and Atomic Structure: Key Figures and Discoveries

Explore the history of quantum mechanics and atomic structure from ancient philosophers like Democritus to modern pioneers such as Albert Einstein and Niels Bohr. This summary highlights significant contributions made by scientists like John Dalton, J.J. Thompson, and Erwin Schrödinger, focusing on their groundbreaking theories about atoms, electrons, and the dual nature of light. Learn how fundamental principles like Planck's constant and the Rydberg equation shaped our understanding of atomic behavior and electromagnetic radiation, leading to innovations in physics and chemistry.

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The Evolution of Quantum Mechanics and Atomic Structure: Key Figures and Discoveries

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Presentation Transcript

  1. Quantum Mechanics & Atomic Structure Uteach Summer 2009

  2. Democritus Francis Bacon John Dalton 400 BC 1600’s 1800’s

  3. Sir Humphrey Davy Michael Faraday George Stoney Early 1800’s 1800’s late 1800’s Famous English Chemist - Electricity through chemical - Coined the term substances and mass was affected “electron”

  4. J. J. Thompson- “The Electron”

  5. Ernest Rutherford

  6. Electromagnetic Radiation • James Maxwell (1860’s) Vibrating electric and magnetic fields

  7. Standing Waves Nodes vs. Antinodes

  8. Planck & Blackbody Radiation • Max Planck (1900’s) Planck’s Constant 6.626 x 10-34 J -s

  9. Albert Einstein Albert ‘s work with light and Planck’s idea of energy quanta helped him postulate that light travels as waves & particles.

  10. Niels Bohr (1900’s) Rydberg Equation –calculates the wavelength of the visible emission spectrum R-Rydberg Constant- 2.18 x 10-18 J

  11. Johannes Rydberg (early 1900’s) Johann J. Balmer (late 1 800’s)

  12. Charles Coulomb (1700’s)

  13. Louis de Broglie (early 1900’s) Davisson & Germer – experimental proof at Bell Telephone Laboratories in New Jersey

  14. Erwin Schrodinger (1900’s) Wave Functions & Model of the hydrogen atom

  15. Werner Heisenberg Max Born Bohr, Heisenberg, & Pauli Heisenberg lecturing

  16. James Chadwick- The Neutron (1930’s)

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