L13 - Shapes of Molecules + Ions Flashcards
1
Q
What are the 5 types?
A
linear Trigonal Planar Tetrahedral Trigonal Bipyramid Octahedral
2
Q
how many pairs of electrons does linear have?
A
2
3
Q
how many pairs of electrons does trigonal planar have?
A
3
4
Q
how many pairs of electrons does tetrahedral have?
A
4
5
Q
how many pairs of electrons does trigonal bipyramid have?
A
5
6
Q
how many pairs of electrons does octahedral have?
A
6
7
Q
What angle degree does linear have?
A
180
8
Q
What angle degree does trigonal planar have?
A
120
9
Q
What angle degree does tetrahedral have?
A
108.5
10
Q
What angle degree does trigonal bipyramid have?
A
90
120
11
Q
What angle degree does octahedral have?
A
90
12
Q
What do we see when we have a lone pair of electrons?
A
If we have a ‘lone pair’ of electrons, we will see extra repulsion + a squeezing of bond angles
13
Q
how much do lone pairs reduce all bond angles by?
A
2.5 degrees
