Drawing Lewis Structures Basics
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Questions and Answers

What should you do after summing the valence electrons from all atoms in order to draw Lewis structures?

  • Ignore the valence electrons and focus on the central atom octet
  • Add an electron for each positive charge
  • Place any leftover electrons on the central atom
  • Write the symbols for the atoms and connect them with a single bond (correct)

    • Which type of atom is usually listed first if it has various groups bonded to it in a Lewis structure?

  • The central atom (correct)
  • The atom with the highest electronegativity
  • The atom with the highest number of valence electrons
  • The atom with the smallest atomic radius

    • What happens if you have leftover electrons after completing the octets of the atoms bonded to the central atom in a Lewis structure?

  • Create additional bonds with other atoms
  • Place them all on the central atom (correct)
  • Distribute them evenly among all atoms
  • Remove them from the structure

    • If there are not enough electrons to give the central atom an octet in a Lewis structure, what should you try?

    <p>Try multiple bonds</p> Signup and view all the answers

    How should you adjust for indicated positive or negative charges when drawing Lewis structures?

    <p>Add an electron for each positive charge and remove an electron for each negative charge</p> Signup and view all the answers

    If the electronegativity difference between two atoms in a bond is 1.0, what type of bond is formed?

    <p>Polar covalent bond</p> Signup and view all the answers

    What is the oxidation number of an atom in a neutral substance that contains atoms of only one element?

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

    If the ΔEN value is 2.5 between two atoms, what type of bond is most likely formed?

    <p>Ionic bond</p> Signup and view all the answers

    What role do oxidation numbers play in the systematic nomenclature of chemical compounds?

    <p>Naming the compound through a set of rules</p> Signup and view all the answers

    In which type of compound are oxidation numbers particularly useful for tracking changes during a reaction?

    <p>Ionic compounds</p> Signup and view all the answers

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