Atomic Structure and Properties Quiz
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Questions and Answers

Which of the following correctly defines the effective nuclear charge?

  • The charge experienced by a valence electron in an atom, without considering the shielding effect of inner electrons.
  • The charge of the nucleus in an atom.
  • The total charge experienced by all the electrons in an atom.
  • The total charge experienced by a valence electron in an atom, taking into account the shielding effect of inner electrons. (correct)

    • What is polarization?

  • The process of aligning the electron cloud of an atom or molecule in response to an external electric field. (correct)
  • The process of aligning the electron cloud of an atom or molecule in response to an external magnetic field.
  • The process of breaking an ionic bond.
  • The process of breaking a covalent bond.

    • Which of the following compounds has a higher melting point and why?

  • BeCl2, because it has stronger ionic bonds.
  • BeCl2, because it has stronger covalent bonds.
  • BaCl2, because it has stronger ionic bonds. (correct)
  • BaCl2, because it has stronger covalent bonds.

    • According to Fajan's rule, how can the development of covalent character in ionic compounds be explained?

    <p>As the size of the cation increases, the covalent character increases.</p> Signup and view all the answers

    What is the effective nuclear charge of a 3d electron in the Zn atom?

    <p>+10</p> Signup and view all the answers

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