Chapter 9/10- Bonding

Question 1

What is a Lewis dot structure?

Answer 1

Shows number of valence electrons

Question 2

Polar definition

Answer 2

Unequal sharing of electrons

Question 3

What determines polarity?

Answer 3

Electronegativity, or the ability of an atom to attract towards itself the electrons in a chemical bond
Higher electronegativity= higher tendency to attract electrons

Question 4

Electronegativity trend

Answer 4

Up and to the right

Question 5

What are exceptions to the octet rule? (Incomplete)

Answer 5

Be
Has two valence electrons, wants two bonds, or 4 total electrons

B
3 valence electrons, wants three bonds or 6 electrons

Question 6

Exceptions to octet rule (expanded)?

Answer 6

S
Can have 12 electrons

P
Can have 10 electrons

Xe and Se
Need at least 8 but can have more

Question 7

What is VSEPR?

Answer 7

Valence shell electron pair repulsion

Accounts for geometric arrangement of electron pairs around a central atom

Question 8

3 bonds, no lone pairs

Answer 8

Trigonal planar, 120

Question 9

Four bonds, no lone pairs

Answer 9

Tetrahedral 109.5

Question 10

6 bonds no lone pairs

Answer 10

Octahedral

Question 11

5 bonds no lone pairs

Answer 11

Trigonal bipyramidal

Question 12

Two bonds no lone pairs

Answer 12

Linear 180

Question 13

2 bonding one lone

Answer 13

Trigonal planar 117.5

Question 14

3 bonding 1 lone

Answer 14

Trigonal pyramidal 107

Question 15

2 bonding 2 lone

Answer 15

Bent 104.5

Question 16

Pie and sigma bonds?

Answer 16

Single bonds- one sigma
Double bonds- one sigma, one pi
Triple bonds- one sigma, two pi