Understanding Lewis Structures and Chemical Bonding

What is the purpose of using dots in Lewis electron dot structures?

• To represent the atomic number

• To show the valence electrons

• To indicate the element's mass

• To display the element's charge

How many valence electrons does chlorine have in its Lewis structure?

• Six

• Five

• Seven

• Eight

Which family in the periodic table has three valence electrons?

• Family 4A

• Family 3A

• Family 2A

• Family 1A

In the Lewis structure of water, how many lone pairs does the oxygen atom have?

• Three

• Two

• One

• None

How many bonding pairs are present in the Lewis structure of ammonia?

• One

• Two

• Three

• Four