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Unit 3

​Electron Configuration
This unit focuses on the electron, those little buggers make up almost none of the mass of a atom but do SO much more.  
Unit 3 Packet
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Unit 3 PowerPoint
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We start this unit by looking at first ionization energy and how we know that electrons occupy different energy levels.  Depending on the time of year we arrive at this lecture, we may also begin unit 3.3.  Yes we move a little out of order here as first ionization energy is actually a periodic trend which you need to know.




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We go a little out of order here, as first ionization energy is just one trend that repeats along the periodic table.  There are actually 3 trends that you need to know for this class.  
Unit 3.3 Note Questions




​The largest portion of this unit is being able to describe the election cloud of an atom, both in it's shape and properties.  The easiest way to do this is through electron configuration.  We begin this discussion by watching a video about the shape of a hydrogen atom.








In the lecture we analyze photoelectron spectroscopy (PES) data, to write and interpret electron configuration.  We use this data to explain fireworks and magnetism.






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We finish the unit by watching this video about how the quantum properties we've talked about are expressed via magnetic fields.    
Unit 3.2 Note Questions
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  • Home
  • AP Chemistry
    • Unit 1: Atomic Structure
    • Unit 2: Chemical bonds
    • Unit 3: IMFs
    • Unit 4: Chemical Reactions
    • Unit 5: Kinetics
    • Unit 6: Thermochemistry
    • Unit 7: Equilibrium
    • Unit 8: Acid Base
    • Unit 9: Practical Thermo
    • AP Exam Review
  • Chemisty
    • Unit 1
    • Unit 2
    • Unit 3
    • Unit 4
    • Unit 5 & 6
    • Unit 7
    • Unit 8
    • Unit 9
    • Unit 10
    • Unit 11
    • Unit 12
    • Unit 13
    • SOL
  • CNU Biology Lab 109
    • Lab 1: Scientific Investigation
    • Lab 2: Genetic Variation
    • Lab 3: Passive Transport
    • Lab 4: Evolution
    • Lab 5: Fermentation
    • Lab 6: Ecology