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Atomic Structure

Chemistry

QuestionAnswer
Democritus First to suggest existence of atoms. Called atoms indivisible and indestructible. Was considered not credible due to lack of evidence
John Dalton Turned Democritus's ideas into a theory. The modern day process of discovery regarding atoms started with him. Said atoms of same element are identical and different elements can form compounds
JJ Thomson Discovered electron using the Cathode Ray Experiment. Also known for Plum Pudding Model
James Chadwick Discovered the neutron.
Ernest Rutherford Discovered the nucleus using the gold foil experiment.
Niels Bohr Known for Planetary Model. Placed each electron in a specific energy level. Said electrons have fixed energy, definite orbits, and move around protons/nucleus.
Erwin Schrödinger Known for Quantum Mechanical Model or Electron Cloud Model. Said electrons are in probability zones(orbitals) and said an electron's location can't be determined.
Created by: Mufctommy
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