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Model of an Atom

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Stephanie Molano

on 5 February 2013

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Transcript of Model of an Atom

The four scientists had the same general idea. Electricity is attached a certain way and each experiment counter acts one another. From the lightening rod to Coulombs law to the gold foil experiment. Ernest Rutherford Model of an Atom Gold Foil Experiment Charles-Augustin de Coulomb Coulomb's law: Force existence and distance between two electrically charged bodies.
Coulomb proved the whole "opposites attract, and alikes repel" concept. And also that non-conductors pass electricity to a certain extent. Benjamin Franklin (+) Franklin was most known for the "lightening rod". He proves lightening to be plasma or "electrified air".
(-) Other than him discovering and proving his hypothesis, he also invented the electrostatic motor with the help of Andrew Gordon in 1978. (+) This shows "mutual attraction between unlike electic charges, and repulsion between like electric charges." Robert Millikan Robert Millikan was known for his oil drop experiment. This experiment was executed in 1909.
His goal was to define the size of a charge on an electron.
Millikan identified the smallest to be 1.6x10^-19 and all the others to be multiples of that specific number.
You can solve for the charge with that equation. Evidence for the Planetary Atomic Model of Matter Presentation By:
Stephanie Molano Rutherford watched as beams went through sheets of metal (gold). They began to narrow as they passed through. Eventually Rutherford came to a conclusion...

The number of particles scattered at a given angle should be proportional to the thickness of the foil and the square of the charge on the nucleus.
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