Question

mark all that are true about covalent bonds
atoms share 6 electrons in a triple bond
atoms share three pairs of electrons in a double bond
triple bonds are stronger than double bonds
single bonds are stronger than double bonds
double bonds contain two sigma bonds
triple bonds contain one sigma bond and two pi bonds
ionic bonds are stronger than covalent bonds
a single covalent bond is stronger than a level 6 ionic bond

Explanation:

• For a triple bond, each pair of electrons is 2 electrons, so 3 pairs mean 6 electrons shared. So “Atoms share 6 electrons in a triple bond” is true.
• A double bond has 2 pairs of shared electrons, not 3. So “Atoms share three pairs of electrons in a double bond” is false.
• Triple bonds have more electron - sharing and stronger orbital overlap compared to double bonds. So “Triple bonds are stronger than double bonds” is true.
• Double bonds are stronger than single bonds due to more electron - sharing and orbital overlap. So “Single bonds are stronger than double bonds” is false.
• A double bond has one sigma and one pi bond. So “Double bonds contain two sigma bonds” is false.
• A triple bond has one sigma and two pi bonds. So “Triple bonds contain one sigma bond and two pi bonds” is true.
• Ionic bonds are not necessarily stronger than covalent bonds. For example, some covalent network solids (like diamond) have very strong covalent bonds. So “Ionic bonds are stronger than covalent bonds” is false.
• A single covalent bond is generally weaker than a level 6 ionic bond (assuming some scale of bond strength for ionic bonds). So “A single covalent bond is stronger than a level 6 ionic bond” is false.

Answer:

• Atoms share 6 electrons in a triple bond
• Triple bonds are stronger than double bonds
• Triple bonds contain one sigma bond and two pi bonds