Question

How do you draw sigma and pi bonds?

Answer 1

To draw these bonds, you must be aware of the shapes of s-, p- or d- orbitals, and in particular, where the axis of symmetry for these orbitals lie.

Explanation:

Each of these bonds is a sigma bond, as the overlap in orbitals is "head-on".

This is a pi bond. The overlap of orbitals is sort of "side-on"
You can most easily draw these bonds by drawing outlines of the orbitals based on these images.

(Images taken from https://sites.google.com/site/ed350201003/Task)