AP Chemistry - Lewis Diagrams Quiz

What are Lewis diagrams used to predict?

• The taste of a molecule

• The shape of a molecule

• The color of a molecule

• The sound of a molecule

What is the octet rule based on?

• Atoms tend to form bonds with 8 electrons

• Atoms tend to form bonds with 10 electrons

• Atoms tend to form bonds with 4 electrons

• Atoms tend to form bonds with 6 electrons

What are lone pairs in a Lewis structure?

• Pairs of electrons that are localized around a single atom

• Pairs of protons found in the shared space between atoms

• Pairs of electrons that are shared with other atoms

• Pairs of neutrons that are localized around a single atom

How are ionic Lewis dot structures drawn?

• By drawing the metals first

• By drawing the nonmetals first

• By drawing the central atom first

• By drawing the lone pairs first

What is the maximum number of valence electrons that hydrogen can have?

• 6

• 8

• 4

• 2

What should be done if there are too many electrons in a covalent Lewis structure?

• Erase lone pairs from adjacent atoms and make double/triple bonds

• Add some to the central atom

• Erase lone pairs from the central atom

• Add some to the outside atoms

What is the proper Lewis dot structure of O2?

• O:::O

• O::O

• O-O

• O=O

What is the proper Lewis diagram for CS2?

• C:::S:::S

• C=S=S

• C-S-S

• C::S::S

What is the proper Lewis dot structure of N2?

• N#N

• N::N

• N:::N

• N=N

What is the maximum number of valence electrons that beryllium can have?

• 4

• 6

• 2

• 8