Shapes of Molecules Flashcards
1
Q
Tetrahedral
A
Like a pyramid with a triangle bottom. 109.5* between all 4 bonds (1:4)
NO lone pairs
tex methane.
2
Q
Linear
A
A straight line, 180* between 2 bonds. (1:2)
NO lone pairs
tex carbon dioxide
3
Q
Trigonal planar
A
flat traingle, 120* betweeen 3 bonds (1:3)
NO lone pairs
tex Boron trifluride
4
Q
Pyramidal
A
Like tetrahedral but without the bond on top, also bonds are slightly closer together. (1:3 + 1lp)
has a Lone pair on the ‘top’ (causes the ihoptryckning of the bonds)
107* between 3 bonds
tex ammonia
5
Q
Non linear (bent)
A
Like linear but bent. (1:2 + 2lp)
has 2 lone pairs
104.5* between 2 bonds
tex Water
