Chapter 4: Geometry

Question 1

What orbitals are found in the valence shell of second row elements? (CNOF)

Answer 1

1 s orbital and 3 p orbitals

Question 2

What are hybridized orbitals?

Answer 2

S and P orbitals combining together

Question 2

How do you determine the number of hybridized orbitals?

Answer 2

Count the number of bonds and lone pairs of each molecule

Question 3

Single bonds have what kind of hybridized orbitals?

Answer 3

sp3 = 4 hybridized orbitals = 4 sp3 orbitals

Question 4

Double bonds have what kind of hybridized orbitals?

Answer 4

sp2 = 3 hybridized orbitals = 3 sp2 orbitals and 1 p orbital

Question 5

Triple bonds have what kind of hybridized orbitals?

Answer 5

sp = 2 hybridized orbitals = 2 sp orbitals, 2 p orbitals

Question 6

What is the geometry of sp3 hybridization with no lone pairs?

Answer 6

Tetrahedral

Question 7

What is the geometry of sp3 hybridization with 1 lone pair?

Answer 7

Trigonal pyramidal

Question 8

What is the geometry of sp3 with 2 lone pairs?

Answer 8

Bent

Question 9

What is the geometry of sp2 hybridization with no lone pairs?

Answer 9

Trigonal planar

Question 10

What is the geometry of sp2 hybridization with 1 lone pair?

Answer 10

Bent

Question 11

What is the geometry of sp hybridization?

Answer 11

Linear

Question 12

True/False: A lone pair that participates in resonance occupies a p orbital and is not hybridized

Answer 12

True: don’t count the lone pair as a hybridized orbital when determining a molecule’s geometry