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Approx his discovery waws made in 350 B.C.Many of his ideas were more thought based then scientifically based. He made up the four elements..
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http://thelittleguy22.tripod.com/id1.html- He discovered that all atoms are solid, insdestructable, and unique.
- He theorized that these tiny particles some how had hooks attached to them so they could stick together. -
http://www.rsc.org/chemsoc/timeline/pages/1803.html Approx his discovery was made in 1803.Method-
- all matter is made of atoms all atoms of given element are identical in mass and properties. He had a model called "Billard Balls"
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- He discovered that atoms had electrons so he added electrons to the model of the atom.
- He used many methods.-Used a cathade ray tub filled with a gas that he charged.
- Famous method- plum padding model-He thought it was an atom with electrons randomly placed inside.
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http://www.chalkbored.com/lessons/chemistry-11/atomic-models-handout.pdfApprox his discovery was made in 1913 He added electrons to the atom model he had a famous model called the Bohr model
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http://www.britannica.com/EBchecked/topic/514229/Ernest-Rutherford-Baron-Rutherford-of-NelsonHis discovery was in 1911. He added electrons to the model He had a model in common with someone else they did the same method it was called the Bohr method
