Now, ethylene is composed of two carbons connected by a double bond and two H atoms found on both sides of those carbons. So let's begin by building or creating this ethylene molecule. So let's create it using a methylratical. Recall that a methylradical is simply a carbon atom attached to three H bonds or three H atoms via SP two hybridized orbitals. So each of these sigma bonds, covalent sigma bonds, are SP two hybridized. And we also have a pure two p orbital that contains a single electron within that two p orbital.