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 (C)</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 (B)</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 (C)</p> Signup and view all the answers

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

<p>Single bond (B)</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' (A)</p> Signup and view all the answers

Why do atoms bond?

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

Why are noble gases considered stable?

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

In the atomic model, where do valence electrons reside?

<p>In the outermost shell (A)</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 (D)</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 (B)</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 (B)</p> Signup and view all the answers

What is the fundamental concept for deciphering molecules and compounds?

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

Which electrons play a key role in determining chemical behavior?

<p>Valence electrons (C)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>Double bond (B)</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 (A)</p> Signup and view all the answers

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

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

How do helium atoms behave when approached for bonding?

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

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

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

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

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

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

<p>'Covalent' bonds (D)</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; (A)</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 (A)</p> Signup and view all the answers

What is the primary reason why atoms bond?

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

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

<p>Valence electrons (A)</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 (B)</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 (D)</p> Signup and view all the answers

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

<p>Atomic model (C)</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 (A)</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 (D)</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 (B)</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 (D)</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 (B)</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 (A)</p> Signup and view all the answers

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

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

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

<p>More shared electrons (A)</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 (D)</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 (B)</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 (A)</p> Signup and view all the answers

Why do atoms bond according to the text?

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

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

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

What role do valence electrons play in atomic bonding?

<p>Dictating the chemical behavior of the atom (C)</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 (A)</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 (C)</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 (C)</p> Signup and view all the answers

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