Shapes of Molecules (3.1.3-Phys.)

Question 1

How do you work out the shape of molecules?

Answer 1

Number of valence e- 
Number of covalent bonds
if ion charge (+ or -)
Divide by 2
Lone pairs= Total pairs- covalent bonds

Question 2

What does VSEPR theory stand for?

Answer 2

Valence, Shell, Electron, Pair, Repulsion

Question 3

Order of strength for lp and bp?

Answer 3

LP-LP > LP-BP > BP-BP

Question 4

Tetrahedral

Answer 4

4 bonding pairs, 109.5 degrees

Question 5

Pyradimal

Answer 5

3 bonding pairs and 1 lone pair, 107 degrees

Question 6

Linear

Answer 6

2 bonding pairs, 180 degrees

Question 7

Trigonal planar

Answer 7

3 bonding pairs, 120 degrees

Question 8

Bent

Answer 8

2 bonding pairs and 2 lone pairs, 104.5 degrees

Question 9

Trigonal bipyramid

Answer 9

5 bonding pairs

1) 120 degrees
2) 90 degrees

Question 10

Octahedral

Answer 10

6 bonding pairs, 90 degrees