5.1 Lewis Dot Structures

Question 1

What does each dot represent in a Lewis dot structure?

Answer 1

one valence electron

Question 2

What is a lewis dot structure?

Answer 2

model used to represent what compounds look like at the molecular level

Question 3

What is a formal charge?

Answer 3

the theoretical charge on an atom in a molecule calculated by V-(1/2)B-L where V is the number of valence electrons, B is the number of bonding electrons, and L is the number of lone pair electrons

Question 4

What is the “best” lewis structure?

Answer 4

all atoms have a formal charge of 0 and an octet of electrons

Question 5

If a structure must have a formal charge, what is the best one?

Answer 5

negative formal charge on the more electronegative atom

Question 6

What are resonance structures?

Answer 6

two or more lewis dot structures that differ only by the placement of electrons in the molecule

Question 7

What is a resonance hyrbid?

Answer 7

average of all of the resonance structures