And we also generate a radical species on this carbon. And so we form this unstable reactive intermediate. Now in the next step, we basically want to take this entire group shown in blue and move it onto this carbon. So what happens is this carbon along with one electron that is present in this sigma bond, goes away and moves onto this carbon to form a sigma bond between this carbon and this carbon. At the same time, one of the electrons in this bond that is broken remains on this carbon number two. And so that is what we see in this diagram.