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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. 10/21/2019 Atomic Structure worksheet
  2. 11/18/2019 p. 112-114 - 29,30,60a,61,62,64 - 66,71,72(1st line only),75,77
    p. 115 - 1-4, 7-10 (5 pts) (17 questions)
Section 4.2 Subatomic Particles of Matter
  1. 10/22/2019 Use PhET animation to show complete symbols for elements Be, Li, O, N, K, & F. Show atomic #, mass #, charge (if not zero). Use today's simulation used in class on Chromebooks.
  2. 10/25/2019 EX CR - Dalton's Playhouse - video shows how to do it. Up to 16 points ex cr
  3. 10/23/2019 video notes on Structure of the Atom & its history, - Discovering the Electron, The Nuclear Atom - 1.5 - 2 pages
  4. 11/18/2019 p. 112-114 - 29,30,60a,61,62,64 - 66,71,72(1st line only),75,77
    p. 115 - 1-4, 7-10 (5 pts) (17 questions)
Section 4.3 How Atoms Differ
  1. 10/25/2019 EX CR - Dalton's Playhouse - video shows how to do it. Up to 16 points ex cr
  2. 10/28/2019 Page 113 #72 (draw the chart completely & fill it in.
  3. 10/29/2019 MOGIL - Isotopes, pages 1 & 2. This link will take you to all of the pages of the POGIL we started today. We will do more of this POGIL tomorrow.
  4. 11/18/2019 p. 112-114 - 29,30,60a,61,62,64 - 66,71,72(1st line only),75,77
    p. 115 - 1-4, 7-10 (5 pts) (17 questions)
Section 4.4 Unstable Nuclei and Radioactive Decay
  1. 10/31/2019 Practice Problems for Radioactive Decay 19-26 (all letters)
  In Class Assignments
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  Tests and Quizes
  Tutorials
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