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Atomic Structure (Niels Henrik David Bohr
Traveled to england to study…
Atomic Structure
Niels Henrik David Bohr
Traveled to england to study with Rutherford
Also interested in the mathematical version, Max Plank, and Albert Einstein
His model represents the electrons around a small central nucleus
Each orbit has a certain number of electrons
Greek philosopher Leucippus and Democritus came up with idea that matter is composed of tiny particles
They though if you cut something small enough it wouldn’t be able to cut any more
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1870 scientists started figuring out what stuff was made of using discharge tubes which are gas filled tubes with electrons in each end
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1886 german physicist Eugen Goldstein found that the tubes also admitted light from the positive electrode
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English physicist J.J Thomson measured how much heat the cathode rays generated, how much they could be bent by magnets be able to estimate the mass of the rays
Discovered that they were not rays at all and that they were very light, and small negatively charged particles
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Werner Karl Heisenberg
Discovered that it is impossible to discover the exact momentum of an electron and it’s exact position
Quantum theory
Proposes that electrons weren’t particles or waves they had a little bit of both and neither
Orbatils
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