Atomic Theory: Nuclear Model
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Atomic Theory: Nuclear Model

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Questions and Answers

What is the primary feature of the nuclear model of the atom?

  • Electrons are found in fixed paths around the nucleus.
  • Electrons are embedded within a positively charged sphere.
  • Atoms have equal numbers of protons and neutrons.
  • Atoms consist of a positively charged nucleus with orbiting electrons. (correct)
  • Which subatomic particle resides in the nucleus of an atom?

  • Photon
  • Electron
  • Proton (correct)
  • Neutron (correct)
  • Which model of the atom proposed that electrons are free-floating within a positively charged 'soup'?

  • Nuclear model
  • Plum pudding model (correct)
  • Quantum mechanical model
  • Planetary model
  • What aspect of atomic structure did Niels Bohr primarily contribute to?

    <p>Defining electron shells around the nucleus</p> Signup and view all the answers

    In the nuclear model, how is the size of the nucleus compared to the overall size of the atom?

    <p>The nucleus is very small compared to the atom.</p> Signup and view all the answers

    What is the main concept of the solid sphere model of atomic theory?

    <p>Atoms are solid and dense with no internal structure or subatomic particles considered.</p> Signup and view all the answers

    Which atomic model was proposed before the discovery of subatomic particles?

    <p>Solid sphere model</p> Signup and view all the answers

    What fundamental concept did Niels Bohr contribute to atomic theory?

    <p>The quantization of electron energy levels</p> Signup and view all the answers

    Which of the following statements best describes Niels Bohr's contribution to atomic theory?

    <p>He proposed that electrons exist in defined paths around the nucleus.</p> Signup and view all the answers

    What distinguishes the nuclear model of the atom from the solid sphere model?

    <p>The nuclear model includes the concept of a central nucleus.</p> Signup and view all the answers

    Which model of atomic structure conceptualizes positive charge being spread throughout an atom?

    <p>Plum pudding model</p> Signup and view all the answers

    Which of the following correctly describes the electron configuration of carbon?

    <p>1s² 2s² 2p²</p> Signup and view all the answers

    What are the three main subatomic particles found in an atom?

    <p>Protons, electrons, and neutrons</p> Signup and view all the answers

    Which model of the atom is characterized by a central nucleus surrounded by electrons in orbits?

    <p>Nuclear model</p> Signup and view all the answers

    Which statement best describes the plum pudding model of the atom?

    <p>Electrons are distributed in a positively charged 'soup' throughout the atom</p> Signup and view all the answers

    Study Notes

    Nuclear Model

    • The atom features a small, dense nucleus located at the center.
    • The nucleus carries a positive charge due to protons.
    • Electrons orbit the nucleus, analogous to planets revolving around the sun.

    Solid Sphere Model

    • Atoms are portrayed as dense and solid entities.
    • This model lacks consideration for internal structure or subatomic particles.

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    Description

    Explore the nuclear model of the atom, which describes a small, dense, positively charged nucleus at its center, surrounded by electrons in orbit. This quiz will test your understanding of the fundamental structure of atoms and their components.

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