History of the atom
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Last updated 5:43 PM on 4/5/25
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5 Terms
1
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What was the order of discovery of the proton neutron and electron
electron
proton
neutron
2
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What was JJ Thompsons theory
The plum pudding model
a general ball of positive charge with electrons stuck inside it
3
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What was Rutherfords discovery
He fired alpha particles at a thin sheet of gold and some particles passed through however some were deflected leading to the conclusion that there is a compact nucleus with a positive charge
4
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What was Bohr’s discovery
electrons orbit the nucleus in shells
5
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what was chadwick’s discovery
the existence of neutrons within the nucleus
Note 
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