It's quite difficult to give you the ansver without any diagram attached. But I think I can help you. I suppose the first, the second and the third atom all are <span>carbon, Then fourth should be sulphur and the last one - nidrogen The actual look of this task should be like that : </span><span>atom 1,2,3,4-sp2
atom 5-sp3. I hope it will help you in some measure, but next time check it carefully.</span>
