shapes of molecules

Question 1

name all the shapes molecules can have when there are two electron pairs and their bond angles

Answer 1

(2 bonding pairs)- linear, 180°

Question 2

name all the shapes molecules can have when there are three electron pairs and their bond angles

Answer 2

(3 bonding pairs)- trigonal planar, 120°

(2 bonding pairs, 1 lone)- bent (V-shape), 118°

Question 3

name all the shapes molecules can have when there are four electron pairs and their bond angles

Answer 3

(4b. p)- tetrahedral, 109.5°
(3b. p, 1 lone)- pyramidal, 107°
(2b. p, 2 lone)- bent (V-shape), 104.5°

Question 4

name all the shapes molecules can have when there are five electron pairs and their bond angles

Answer 4

(5b. p)- trigonal bipyramidal, 90° and 120°
(4b. p, 1 lone)- seesaw, 119° and 89°
(3b. p, 2 lone)- T-shape(89°) or trigonal planar(120°)

Question 5

name all the shapes molecules can have when there are six electron pairs and their bond angles

Answer 5

(6b. p)- octahedral, 90°
(5b. p, 1 lone)- distorted square pyramid, 89°
(4b. p, 2 lone)- square planar, 90°