How do you correctly draw the radical of a molecule? The following should help:

Look at the above images. Why is the molecule on the left correct and the molecule on the right incorrect?

It is all about paying close attention to detail. The molecule on the left correctly shows the unpaired electron on the carbon atom, where as the molecule on the right shows the unpaired electron on the hydrogen atom – and this is incorrect.

The following dot and cross diagram also helps to visualise this: