Quantum Mechanical Model of the Atom Quiz
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Questions and Answers

What is responsible for the array of colors observed in fireworks?

  • Heating of metal salts
  • Arrangement of electrons within the atoms (correct)
  • Presence of specific gases in the atmosphere
  • Combustion of explosive materials

    • What characteristic of metal salts is responsible for emitting different colors of light when heated?

  • Valence electrons
  • Atomic number
  • Energy levels (correct)
  • Atomic weight

    • How can the Quantum Mechanical Model describe the energies and positions of electrons in an atom?

  • By considering electrons as waves with probability distributions (correct)
  • By using classical mechanics principles
  • By considering electrons as particles with definite positions and velocities
  • By ignoring the quantum nature of electrons

    • What does the Quantum Mechanical Model of the atom suggest about the position of electrons?

    <p>Electrons exist as waves with probability distributions</p> Signup and view all the answers

    Why do electrons stay only in definite energy levels?

    <p>To satisfy the laws of classical mechanics</p> Signup and view all the answers

    What is the relationship between the metal element and the color of flame produced?

    <p>The metal element determines the specific color of the emitted light</p> Signup and view all the answers

    If sodium nitrate is changed to another salt of sodium, such as sodium chloride, would the color of the flame be the same or different? Why?

    <p>The color of the flame would be different because each salt contains different elements responsible for color emission</p> Signup and view all the answers

    How did Neils Bohr explain the spectral lines of an element shown in the spectroscope?

    <p>Bohr explained it by stating that electrons move around the nucleus in circular paths at definite distances</p> Signup and view all the answers

    What did Erwin Schrodinger use to describe the possibility of finding an electron in a given region around the nucleus?

    <p>Mathematical equations</p> Signup and view all the answers

    What refinement did Erwin Schrodinger make to Bohr's atomic model?

    <p>Schrodinger proposed that electrons only exist in discrete energy levels within the atom</p> Signup and view all the answers

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