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Important People in the formation of the Atomic Theory
Created by Senecas
on Jan 6, 2011
Last updated: 01/06/11 at 05:54 AM
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His first model was the plum pudding model. But after the Gold Foilo Experiment in which he concluded that Atoms must be mostly empty space, they have a small, dense nucleus, and the nucleus must be positive.
He used the cathode ray tube to prove the existenece of positive and negative particles called protons and electrons
Proust 1799:Law of definate proportion; elements that compose compounds are always in a certain proportion by mass.
Dalton 1766-1844: father of modern Atomic Theory; copied what the other scientists saidand put it into one theory.
Law of Conversion of Mass; mass can't be created or destroyed.