Periodic Table of Elements
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Questions and Answers

What is the definition of ionization energy?

  • The energy change when an electron is accepted by an atom
  • The energy required to form an anion
  • The minimum energy required to remove an electron from a gaseous atom (correct)
  • The energy change when an electron is removed from an atom

    • What is the definition of electron affinity?

  • The energy required to form a cation
  • The energy change when an atom accepts electrons
  • The negative of the energy change when an electron is accepted by an atom (correct)
  • The energy change when an electron is removed from an atom

    • Which orbital are electrons always removed from first when a cation is formed from a transition metal atom?

  • ns orbital (correct)
  • (n - 1)d orbitals
  • np orbital
  • (n + 1)s orbital

    • What do we call elements with the same number of electrons and hence the same ground-state electron configuration?

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

    Which orbital are electrons always removed from first when a cation is formed from a transition metal atom?

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

    What is the minimum energy required to remove an electron from a gaseous atom in its ground state known as?

    <p>Ionization energy</p> Signup and view all the answers

    What do we call elements with the same number of electrons and hence the same ground-state electron configuration?

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

    What is the negative of the energy change that occurs when an electron is accepted by an atom in the gaseous state to form an anion called?

    <p>Electron affinity</p> Signup and view all the answers

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