Atomic Models and Properties of Atoms
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Questions and Answers

Which scientist's model of the atom required a new atomic model based on experimental observations?

  • Dalton
  • Bohr
  • Rutherford (correct)
  • Thomson
  • Which scientist described atoms as small, indivisible spheres in his atomic model?

  • Thomson
  • Bohr
  • Dalton (correct)
  • Rutherford
  • What did J.J. Thomson's atomic model incorporate based on his discovery?

  • Photon
  • Electron (correct)
  • Neutron
  • Proton
  • Which type of particles were used in Rutherford's experiments with gold foil to develop a new atomic model?

    <p>Alpha particles</p> Signup and view all the answers

    Which model of the atom marked the beginning of a new way of explaining matter?

    <p>Dalton's model</p> Signup and view all the answers

    In Rutherford's experiments, what was monitored to observe the scattering of alpha particles?

    <p>Alpha particles</p> Signup and view all the answers

    What is the relationship between frequency and energy in electromagnetic waves?

    <p>Directly proportional: higher frequency means higher energy</p> Signup and view all the answers

    How does the Bohr model explain the stability of the nuclear model of the atom?

    <p>By proposing that electrons are in circular orbits with quantized energy levels</p> Signup and view all the answers

    What defines the quantum nature of energy and its relationship to frequency?

    <p>Planck's constant</p> Signup and view all the answers

    Why do atoms emit light when excited and then return to a non-excited state?

    <p>Due to absorption of energy causing them to lose energy</p> Signup and view all the answers

    In the electromagnetic spectrum, what does a higher wave frequency indicate?

    <p>Higher energy carried by the wave</p> Signup and view all the answers

    What characteristic defines the different colors of light we see?

    <p>Frequency</p> Signup and view all the answers

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