bond shapes & angles

Question 1

AB2 - 2 bonds, 1 lone pair

Answer 1

linear
angle = 180
(just goes straight)

Question 2

AB3 - 3 bonds, 0 lone pairs

Answer 2

trigonal planar
angle = 120
(1 line top, 2 line bottom)

Question 3

AB3- 2 bonds, 1 lone pair

Answer 3

bent
angle = less than 120
(central top, 2 lines bottom)

Question 4

AB4 - 4 bonds, 0 lone pairs

Answer 4

tetrahedral
angle = 109.5
(central with 1 top, 3 bottom)

Question 5

AB4 - 3 bonds, 1 lone pair

Answer 5

trigonal pyramidal
angle = less than 109.5
(central atom top, 3 bottom)

Question 6

AB4- 2 bonds, 2 lone pairs

Answer 6

bent
angle = less than 109.5
(2 lone pairs on central atom top, 2 lines down)
h20 most famous one

Question 7

AB5- 5 bonds, 0 lone pairs

Answer 7

trigonal bipyramidal
angle = 120 & 90
(central atom middle, 5 lines all sides, looks like a star)

Question 8

AB5- 4 bonds, 1 lone pair

Answer 8

see saw
angle = less than 120 & 90
(central atom, 4 look like see saw sticks)

Question 9

AB5- 3 bonds, 2 lone pairs

Answer 9

t shaped
angle = less than 120 & 90
(lone pairs at the bottom, other atoms make a t at the top)

Question 10

AB5- 2 bonds, 3 lone pairs

Answer 10

linear
angle = 180
(just goes straight and 3 electron pairs on every one)

Question 11

AB6- 6 bonds, 0 lone pairs

Answer 11

octahedral
angle = 90
(central atom with evenly dispersed 6 sticks)

Question 12

AB6- 5 bonds, 1 lone pair

Answer 12

square pyramidal
angle = less than 90
(central atom w lone pair at top, 3 sticks bottom, 2 sticks right and left)

Question 13

AB6- 4 bonds, 2 lone pairs

Answer 13

square planar
angle = 90
(lone pairs at top and bottom of central atom, 2 sticks right, 2 sticks left)