Evolution of the Atom Model Quiz
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Questions and Answers

Which scientist is credited with proposing the nuclear model after conducting the gold foil experiment?

  • Niels Bohr
  • John Dalton
  • J.J. Thomson
  • Ernest Rutherford (correct)
  • What is the relative mass of an electron compared to a proton?

  • Lighter (correct)
  • Heavier
  • Same
  • Dependent on the charge
  • Who discovered the electron through cathode ray tube experiments?

  • John Dalton
  • Niels Bohr
  • J.J. Thomson (correct)
  • Ernest Rutherford
  • What is the charge of a neutron?

    <p>+0</p> Signup and view all the answers

    Which scientist is associated with developing the Bohr model of the atom?

    <p>Niels Bohr</p> Signup and view all the answers

    According to the ancient Greek model, atoms were considered to be __________ particles.

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

    Which scientist proposed the plum pudding model, suggesting atoms were a positively charged sphere with negatively charged electrons embedded within?

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

    In Rutherford's model of the atom, what is at the center of the atom?

    <p>Positively charged nucleus</p> Signup and view all the answers

    Which scientist's model described electrons orbiting the nucleus in discrete energy levels or shells?

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

    The modern quantum mechanical model describes electrons as existing in __________ around the nucleus.

    <p>Probability clouds</p> Signup and view all the answers

    Which ancient Greek philosophers proposed the concept of atoms as indivisible particles?

    <p>Democritus and Leucippus</p> Signup and view all the answers

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