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Subatomic Particles
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Definitions
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Experiments
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Chemists
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First Atomic Theory
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Atoms
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Subatomic particles Definitions Experiments Chemists First Atomic Theory Atoms $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
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Positively charged particles
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Protons
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Affects chemical properties
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Electrons
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Identifies an element
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Proton
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In nucleus with protons
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neutrons
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Has virtually no mass
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Electron
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Indicates number of protons
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Atomic number
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Boyle first defined this
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Element
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atomos
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indivisible
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shorthand abbreviations used to represent elements
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Chemical symbols
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Atoms of the same element
with different masses
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Isotopes
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projected at gold foil
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alpha particles
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Thomson’s model of the atom
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Plum pudding model
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determined charge of an electron
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Oil drop experiment
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“light” in electrically
charged tubes
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cathode rays
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proved existence of nucleus
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Gold foil experiment
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Discovered Electrons
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J.J. Thomson
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First to define an element
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Boyle
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Proved his teacher’s model of atom wrong
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Rutherford
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Discovered neutrons
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Chadwick
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Greek philosopher who used “atomos” to describe matter
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Democritus
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Matter is made of these tiny particles
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atoms
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Atoms of a given element are
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identical
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Matter cannot be….
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created or destroyed
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Compounds contain the same relative number of
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atoms
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Daily Double!!
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for first atomic theory
Person responsible for first atomic theory
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John Dalton
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center of atom
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nucleus
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Electrons are Located in
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empty space
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force that holds protons and neutrons together
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nuclear force
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composed of only one type of atom
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element
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determines mass of an atom
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nucleus
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Double Jeopardy!!
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Type Subject #1 Here Type Subject #2 Here Type Subject #3 Here Type Subject #4 Here Type Subject #5 Here Type Subject #6 Here $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
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Daily Double!!
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idea of the American Dream from the Puritan through
Final Jeopardy Discuss how the idea of the American Dream from the Puritan through the post-Depression era has changed.
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The Puritans came here for freedom to achieve their
dreams. The Romantics showed how it might not be as easy as they say, but it is still possible. The post-Depression writers argue it's not real
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