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Chapter 4: The Structure of the Atom

4.1 Early Theories of Matter
Philosophers - Greek ( fire, earth, air, water, Aristotle, Democritus - atom )
19th Century - John Dalton ( atom ), Alchemy

4.2 Subatomic Particles and the Nuclear Atom
Electron, proton, neutron, cathode ray tube, Millikan, J.J. Thompson, Rutherford
( alpha particle, gold foil ) nucleus, Chadwick ( neutron )

4.3 How Atoms Differ
Atomic number, Moseley
atomic number = # protons = # electrons
isotopes and mass number, atomic mass unit ( AMU )

4.4 Unstable Nuclei and Radioacive Decay
Radioactivity, nuclear reactions, radiation
Types of radiation, alpha a ( 2+ ), gamma ? ( no charge ),
beta ß ( 1- )

  Homework
Section 4.1 Early Theories of Matter
  1. 10/12/2017 Read Ch 4.1   p87-89 and do Venn Diagram comparing Democritis, Aristotle, and Dolton's theories of how matter is made up.

    (3 large circle that overlap and fill an entire 8.5 x 11" paper)
Section 4.2 Subatomic Particles of Matter
  1. 10/17/2017 p97   8, 9 (requires Venn Diag), 10 (only consider proton, neutron, and electron)
  2. 10/17/2017 LINK - PhET Simulation - Rutherford Scattering
Section 4.3 How Atoms Differ
  1. 10/19/2017 Complete pages 1 & 2 of this MOGUL. Answer on the document (not std HW directions)
Section 4.4 Unstable Nuclei and Radioactive Decay
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