hybridised orbitals

[Ice-cream]

hey guys, i'm learning about hybridisation at the moment but theres just something im confused about. If im given a lewis diagram of a molecule, i can easily tell where the sigma bonds are (coz they're just between the atoms) but how can i tell where the pi bonds are (coz from what i know, they;re meant to be at different orientations or something). there's got to be a way of just easily seeing how many pi bonds there are and where they are isn't there? can anyone help me plz?

[jarmenkill]

all double bonds have a pi and a sigma bonds.

all triple bonds have 2 pi(s) and one sigma bonds.

 

why?

 

hybridization orbitals will make a sigma bond.(two orbitals will get face to face)

 

excess P orbital(s) may make 1(2) pi bonds.

take a look at orbitals spatial shapes.