Day 6 in SCI110: Chemistry

Spring 2006 Schedule
Last time: Quiz, Regression, Vital Capacity
- Quiz 1
- Vital Lung Capacity Experiment
  - Body Surface Area Calculator
  - Data
  - Examination of some results, using
    - Regression
    - T-Tests (independent samples)
  - Regression Interpretation
Today:
- Sorry: quizzes aren't graded yet. I'll hand back the quizzes next time.
- Regression analyses for vital capacity
  - what did we learn?
  - was anything "significant"?
  - what happened?!;)
- Correlation and Linear Regression:
  - Homework questions from Correlation and Regression worksheet (pp. 14-19)
  - Make sure to check out the Statistics Overview Sheet on p. 12 in your worksheet packet.
- Review of Pendulum exercise (pp. 20-21)
  - Pendulum experiment
    - What conclusions did you reach?
    - Did your conclusions jive with the model in your worksheet? Which variables should influence the period?
    - What problems did you encounter in the design or execution of your experiments?
    - Questions at the end of the experiment
  - Pendulum exercise on-line
  - Doing regression in SPSS (p. 26)
- Introduce Group Projects (proposals due Feb 6, Presentations Feb 22)
- Introduce Final Projects (proposals due Mar 27, Presentations Apr 24 and 26)
- The Periodic Table
  - The Periodic Table (with Tim and Moby)
  - chemicalelements.com
  - One page periodic table guide
- Discussion of the periodic table, and electron configurations
  - Ernest Rutherford's experiments and atoms
  - Vocabulary:
    - components of the atom: electron, proton, neutron; nucleus
    - atomic number
    - isotopes and mass number
    - atomic mass units and Carbon-12; atomic weight
  - planetary, or solar-system, model of the atom
    - Electron at about 100,000 the nucleus radius
    - Problem with the model: the atom should collapse!
  - The table:
    - periods (rows) and families, or groups (columns)
    - The elements:
      - alkali metals - soft, shiny metals; highly reactive
      - alkaline earth metals - reactive, but not so much so
      - transition metals
      - semimetals, or semi-conductors
      - non-metals, including the
        
        halogens - "salt formers"
        react with metals to form salts
        
        noble gases
    - The periods
      - Start with a single electron in the outer shell
      - End with a full shell (in a noble gas)
      - "...outer orbital electrons are mostly responsible for the chemical properties of an element."
    - The families
      - all have the same number of electrons in the outer shell (with the exception of helium)
    - Electron dot notation
- Experiment: separating metals from non-metals (pp. 34-36)
  - For help on the difference between metals and non-metals, see p. 184
Homework:
- Make sure to do the readings!
  - For today you should have read Chapter 8: pages 174-175 & 182-186
  - For next time: Chp. 9: 192-201; QFT 1, 3, 4; Group B: 1-3

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