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For more information, please see full course syllabus of Chemistry
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Lecture Comments (5)

1 answer

Last reply by: Zachary McCoy
Fri Jan 3, 2014 10:40 PM

Post by Arvind Swaminathan Ramachandran on December 17, 2013

Why did Rutherford choose gold foil for his experiment? Was it due to its malleability or something?

1 answer

Last reply by: Zachary McCoy
Fri Jan 3, 2014 10:43 PM

Post by Lavanya Kanneganti on August 9, 2013

Okay, so how would you define "charge"??

0 answers

Post by Marie Romano on July 30, 2013

Hi :) I've just been going through these videos- which lectures are good for physics students? All?

The Chemist's Atom

  • JJ Thomson discovered the electron using the cathode ray tube

  • Rutherford discovered the nucleus of the atom using the gold foil experiment

  • Chadwick found the neutron using scattering experiments in particle accelerators

  • Isotopes have the same Z but different A

The Chemist's Atom

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • JJ Thompson and the Electron 1:11
    • Cathode Ray Tube
    • Electron Prediction
    • Millikan, Charge of Electron
    • Proton
  • Rutherford and the Nucleus 5:42
    • Alpha Particles
    • Nucleus
  • Chadwick and the Neutron 12:35
    • Neutron
  • Constitutions of Atoms 17:05
    • Example: Hydrogen Isotopes
    • Example: Iodine 127