Understanding Electronegativity in Chemistry
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Questions and Answers

What is electronegativity defined as?

  • The ability to push electrons away from another atom
  • The ability to prevent electrons from moving between atoms
  • The ability to pull electrons from another atom and hold them tightly (correct)
  • The ability to donate electrons to another atom

    • On Linus Pauling's electronegativity scale, which element is the most electronegative?

  • Fluorine (correct)
  • Oxygen
  • Carbon
  • Sodium

    • What property of an element does a high electronegativity value predict?

  • Neutral behavior towards electrons
  • Inability to attract or hold electrons effectively
  • Repulsion of electrons in compounds
  • Efficient attraction and holding of electrons (correct)

    • Which element has an electronegativity value close to 0 according to Pauling's scale?

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

    What type of bonds are formed when electrons are shared between atoms?

    <p>Covalent bonds</p> Signup and view all the answers

    Which statement accurately describes a nonpolar covalent bond?

    <p>Electrons are shared equally between two atoms.</p> Signup and view all the answers

    What electronegativity difference value indicates a nonpolar covalent bond?

    <p>Less than 0.5</p> Signup and view all the answers

    How does the number of protons in an atom affect electronegativity?

    <p>Increasing the number of protons increases electronegativity.</p> Signup and view all the answers

    Which type of bond has a polar covalent nature?

    <p>N-H</p> Signup and view all the answers

    What is the significance of the electronegativity trend across a period?

    <p>Electronegativity values increase across a period.</p> Signup and view all the answers

    Why does electronegativity decrease down a group in the periodic table?

    <p>Because moving down a group results in a gain of electrons that are farther away from the nucleus.</p> Signup and view all the answers

    How does the number of electron shells between the nucleus and the outermost electron affect nuclear shielding?

    <p>More electron shells increase nuclear shielding.</p> Signup and view all the answers

    Why do noble gases have electronegativity values of 0.0 in the periodic table?

    <p>Because they have full outer shells and do not need to share electrons.</p> Signup and view all the answers

    Why do nonpolar and polar substances not mix?

    <p>Due to the difference in their electronegativities.</p> Signup and view all the answers

    Why are drugs with N-H or O-H bonds very soluble?

    <p>Due to their high polarity because of electronegativity differences.</p> Signup and view all the answers

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