Shapes Of Molecules

Question 1

Describe the bonded pairs and angles of a “linear” molecule.

Answer 1

• 2 bonded electron pairs
• 180 degrees

Question 2

Describe the bonded pairs and angles of a “trigonal planar” molecule.

Answer 2

• 3 bonded electron pairs
• 120 degrees

Question 3

Describe the bonded pairs and angles of a “tetrahedral” molecule.

Answer 3

• 4 bonded electron pairs
• 109.5 degrees

Question 4

Describe the bonded pairs and angles of a “pyramidal” molecule.

Answer 4

• 3 bonded electron pairs
• 1 lone electron pair
• 109.5 - 2.5 = 107 degrees

Question 5

Describe the bonded pairs and angles of a “bent” molecule.

Answer 5

• 2 bonded electron pairs
• 2 lone electron pairs
• 109.5 - 2(2.5) = 104.5 degrees

Question 6

Describe the bonded pairs and angles of a “bipyramidal” molecule.

Answer 6

• 5 bonded electron pairs
• 90 degrees & 120 degrees

Question 7

Describe the bonded pairs and angles of a “octahedral” molecule.

Answer 7

• 6 bonded electron pairs
• 90 degrees

Question 8

Describe the bonded pairs and angles of a “square pyramid” molecule.

Answer 8

• 5 bonded electron pairs
• 1 lone electron pair
• <90 degrees

Question 9

Describe the bonded pairs and angles of a “square planar” molecule.

Answer 9

• 4 bonded electron pairs
• 2 lone electron pairs
• 90 degrees