Understanding Electronegativity in Chemistry
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Questions and Answers

What is the definition of electronegativity?

  • The ability to pull electrons from another atom and hold them tightly (correct)
  • The ability to push electrons towards another atom
  • The ability to repel electrons from another atom
  • The ability to release electrons to another atom

    • Which element has the least electronegative value on Pauling's scale?

  • Francium (correct)
  • Fluorine
  • Oxygen
  • Carbon

    • How does the electronegativity value of an element affect its ability to attract or hold electrons?

  • Electronegativity value has no correlation with the ability to attract or hold electrons
  • Lower electronegativity means less ability to attract or hold electrons
  • Higher electronegativity means less ability to attract or hold electrons
  • Higher electronegativity means higher ability to attract or hold electrons (correct)

    • Which type of bonding involves the sharing of electrons between atoms?

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

    What is the most electronegative element according to Linus Pauling's scale?

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

    What determines if a covalent bond is polar or nonpolar?

    <p>The electronegativity difference</p> Signup and view all the answers

    What does an electronegativity difference (ΔEN) of 0 indicate about a covalent bond?

    <p>It is nonpolar</p> Signup and view all the answers

    According to the electronegativity values in the text, which bond is classified as polar covalent?

    <p>C-O</p> Signup and view all the answers

    Why do nonmetals on the right side of the periodic table have higher electronegativities?

    <p>Due to having stronger nuclear charge</p> Signup and view all the answers

    How can the trend of increasing electronegativity across a period be explained?

    <p>By considering the number of protons in the atom</p> Signup and view all the answers

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

    <p>As electrons gain energy shells farther from the nucleus, there is increased nuclear shielding.</p> Signup and view all the answers

    Why do most noble gases have an electronegativity value of 0.0?

    <p>They have full outer shells of electrons and do not need to share or transfer electrons.</p> Signup and view all the answers

    Why do elements with atomic numbers above 104 have electronegativity values of 0.0?

    <p>They have radioactive nuclei that break down, preventing accurate measurements.</p> Signup and view all the answers

    What makes long chain fatty acids found in oils and fats nonpolar?

    <p>Equal electronegativities of carbon and hydrogen atoms</p> Signup and view all the answers

    How is the polarity of the amide bond used in drug manufacture?

    <p>To enhance solubility and effectiveness of drugs</p> Signup and view all the answers

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