Did Chemistry, Physics and Biology A levels. Wanted to go on to do Chemistry but was dissuaded so did a BSc in Cellular and molecular Biology instead. Qualified as a Doctor and have since done various jobs including a lot of Histopathology lab work (which involved handling some pretty hazardous stuff). So I am comfortable around a lab and working with potentially potentially things. I know a lot about cellular chemistry but not much general chemistry especially physical. I have never lost my interest in chemistry but I never had the time to do any, now I have. As you can see I am a rank beginner so please give me a break and don't flame me if I ask something stupid or elementary.