Chp1 - Chapter 1: The Early Experiments Scientific Method...

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Chapter 1: The Early Experiments Scientific Method Molecules and Atoms Early Experiments Summary of Subatomic Particles Introduction to the Periodic Table Stoichiometry THE MOLE
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How Do We Study Matter? Observation Hypothesis Experiment Theory Scientific Method
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Defining Matter In order to study matter we must understand how it behaves in its simplest form Matter Element / Compound Atom
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Subatomic Particles - Electrons JJ and the Amazing Technicolor Cathode Ray JJ Thomson (1897) – evidence for negatively charged particles, determined charge to mass ratio of the electron
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Radiation Strikes Down Pudding “Gold Foil Experiment” Ernest Rutherford (1910) – fired a 15” shell into a piece of tissue paper and it came back and hit him
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Modern View of Atomic Structure Bulk of mass Bulk of vol. electrons
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What Makes Atoms Different? Different number of subatomic particles Atoms have no net electrical charge; # of protons = # of electrons Chemical Symbols 12 6 C C 6 12.011 Atomic weight Atomic number Mass number Chemical symbol
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This note was uploaded on 10/21/2009 for the course MATH MA241 taught by Professor Hubbard during the Spring '09 term at N.C. Central.

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Chp1 - Chapter 1: The Early Experiments Scientific Method...

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