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Atomic Theory Day 1
Atomic TheoryRead and Answer questions on pages 283
and 286
Make a timeline with the following scientists:DemocritusJohn DaltonJ. J. ThomsonErnest RutherfordNiels Bohr
Underneath each scientist, draw a picture of the atom they theorized
Atomic Theory Day 2
Democritus300 BC
Father of Modern Atomic Theory
Only his thoughts and ideas, no experiments
John DaltonLate 1700’s
Performed experiments
Determined atoms could combine
J. J. ThomsonLate 1800’s
Cathode Ray tube experiment showed that atoms have smaller parts with negative charge
Chocolate chip ice cream model
Ernest RutherfordEarly 1900’s
Gold Foil Experiment showed that atoms have a positively charged nucleus
Niels Bohrmid-1900’s
Most resembles current theory
Electrons in specific levels or rings around nucleus
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