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Chemistry Ch 4

Review for Chapter 4 test over Atomic Structure

QuestionAnswer
has the idea that any sample of water always contains 8 g of oxygen for every 1 g of hydrogen Law of definite composition
first model to include atoms of each element having different masses Dalton's Atomic Theory
helped explain line spectra Bohr model of the atom
states that it is impossible to know both the energy and the exact position of an electron at the same time Heisenberg uncertainty principle
describes how electrons fill orbitals Hund's rule
describes how electrons fill a sublevel (lower energy levels first) Aufbau principle
states that no two electrons in an atom can have the same set of four quantum numbers Pauli exclusion principle
Who is associated with philosophical atomism? Democritus
Who made the first experimental atomic model? John Dalton
Who was the first to be able to explain cathode rays J.J. Thomson
Who discovered x-rays? Wilhelm Roentgen
Who discovered the neutron? James Chadwick
Who discovered protons? Ernest Rutherford
Who built the "planetary" model of the atom Niels Bohr
Who discovered spectroscopy and built the prism spectroscope Robert Bunsen and Gustav Kirchoff
Who discovered magnetic resonance imaging? (MRI) Raymond Damadian
Who implemented the gold foil experiment? Hans Geiger
Created by: IcanDance
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