Ch 3: Chemical bonds
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Questions and Answers

What type of bonding involves the sharing of electrons between atoms?

  • Ionic bonding
  • Metallic bonding
  • Hydrogen bonding
  • Covalent bonding (correct)

    • Which type of bond is formed when three pairs of electrons are shared between atoms?

  • Double bond
  • Single bond
  • Triple bond (correct)
  • Dative bond

    • What do Lewis diagrams represent?

  • The movement of electrons within an atom
  • The structure of the atomic nucleus
  • The chemical properties of an element
  • The valence electrons and bonding between atoms (correct)

    • In covalent bonding, what happens when atoms share electrons?

    <p>Atoms stabilize in a lower energy state</p> Signup and view all the answers

    What type of bond involves one atom donating a lone pair to bond with another atom lacking electrons?

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

    How do helium atoms behave when approached for bonding?

    <p>They stay apart as the energy minimum is not significantly lower</p> Signup and view all the answers

    'Oxygen atom shares electrons with hydrogen atoms' exemplifies which type of bond?

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

    'Formed when two pairs of electrons are shared, as in O2' refers to which type of bond?

    <p>'Double bonds'</p> Signup and view all the answers

    Why do atoms bond?

    <p>To achieve a more stable state</p> Signup and view all the answers

    What is the role of valence electrons in bonding?

    <p>They determine an atom's chemical behavior and its ability to bond</p> Signup and view all the answers

    Why are noble gases considered stable?

    <p>Due to their full valence electron shells</p> Signup and view all the answers

    In the atomic model, where do valence electrons reside?

    <p>In the outermost shell</p> Signup and view all the answers

    What determines whether atoms will bond or not when they approach each other?

    <p>Balance of attractive and repulsive forces</p> Signup and view all the answers

    How does bonding affect the energy levels of atoms?

    <p>Creates a stable molecule with lower energy than separated atoms</p> Signup and view all the answers

    What drives atoms to mimic noble gases?

    <p>Drive towards stability by achieving a full valence electron shell</p> Signup and view all the answers

    What is the fundamental concept for deciphering molecules and compounds?

    <p>Understanding atomic bonds</p> Signup and view all the answers

    Which electrons play a key role in determining chemical behavior?

    <p>Valence electrons</p> Signup and view all the answers

    How do noble gases differ from other elements in terms of reactivity?

    <p>Noble gases are less reactive due to their full valence shells</p> Signup and view all the answers

    What type of bond occurs when both electrons shared in the bond come from the same atom?

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

    Which type of bond involves sharing two pairs of electrons between atoms?

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

    What does a Lewis diagram represent in terms of chemical bonding?

    <p>Valence electrons and bonding between atoms</p> Signup and view all the answers

    Which type of bond arises when three pairs of electrons are shared between atoms?

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

    How do helium atoms behave when approached for bonding?

    <p>They do not form bonds</p> Signup and view all the answers

    'Stabilizing the atoms in a lower energy state' mainly refers to:

    <p>Formation of covalent bonds</p> Signup and view all the answers

    'Sharing of electrons between atoms' is a characteristic feature of:

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

    'Atoms share or transfer electrons to achieve stable configurations' is best associated with:

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

    'Non-bonding pairs of electrons' can significantly affect the shape and reactivity of a molecule due to their role in:

    <p>&quot;Influencing the molecule's shape and reactivity&quot;</p> Signup and view all the answers

    'Two pairs of electrons shared, as in HCl' typically refers to which type of bond?

    <p>'Single' bond</p> Signup and view all the answers

    What is the primary reason why atoms bond?

    <p>To mimic noble gases' stability</p> Signup and view all the answers

    Which electrons are crucial in determining an atom's chemical behavior?

    <p>Valence electrons</p> Signup and view all the answers

    What occurs when two hydrogen atoms approach each other for bonding?

    <p>They balance attractive and repulsive forces to form a bond</p> Signup and view all the answers

    In atomic bonding, what do atoms aim to mimic for stability?

    <p>Noble gases' full valence electron shells</p> Signup and view all the answers

    Which model forms the basis for our understanding of chemical bonding?

    <p>Atomic model</p> Signup and view all the answers

    What results from the interaction between atoms when they approach each other?

    <p>Formation of a stable molecule with lower energy than separated atoms</p> Signup and view all the answers

    Why are noble gases considered less reactive compared to other elements?

    <p>Due to having full valence electron shells</p> Signup and view all the answers

    Which type of electron configuration do atoms aim to achieve through bonding?

    <p><strong>$1s^2 2s^2 2p^6$</strong> configuration</p> Signup and view all the answers

    What is the primary function of Lewis diagrams in chemistry?

    <p>Showing the sharing or transfer of valence electrons between atoms</p> Signup and view all the answers

    Which type of bond is crucial in the formation of certain ions and compounds?

    <p>Dative Covalent Bonds</p> Signup and view all the answers

    In chemistry, what does the presence of lone pairs in molecules primarily affect?

    <p>Molecular shape and reactivity</p> Signup and view all the answers

    What drives some atoms to form multiple bonds with other atoms?

    <p>Achieving stable configurations</p> Signup and view all the answers

    Which feature of covalent bonds distinguishes triple bonds from single and double bonds?

    <p>More shared electrons</p> Signup and view all the answers

    What is the main impact of having filled valence shells on helium's bonding behavior?

    <p>It prevents helium from forming bonds when approached</p> Signup and view all the answers

    How do single bonds differ from double and triple bonds in covalent bonding?

    <p>They involve fewer shared electrons</p> Signup and view all the answers

    'Coordinate bonds' refer to a type of bond where:

    <p>One atom donates a lone pair to another lacking electrons</p> Signup and view all the answers

    Why do atoms bond according to the text?

    <p>To mimic the stability of noble gases</p> Signup and view all the answers

    What determines whether atoms will bond or not when they approach each other?

    <p>The balance of attractive and repulsive forces</p> Signup and view all the answers

    How do helium atoms behave when approached for bonding?

    <p>They resist bonding due to a full valence shell</p> Signup and view all the answers

    What type of bond arises when two hydrogen atoms approach each other?

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

    What role do valence electrons play in atomic bonding?

    <p>Dictating the chemical behavior of the atom</p> Signup and view all the answers

    How do noble gases differ from other elements in terms of reactivity?

    <p>They have full valence electron shells</p> Signup and view all the answers

    Which factor primarily drives atoms to mimic noble gases' stability in bonding?

    <p>Obtaining a full valence electron shell</p> Signup and view all the answers

    In atomic bonding, what happens to the energy state of atoms upon formation of a bond?

    <p>Energy decreases, making the system more stable</p> Signup and view all the answers

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