I came to think about Chemistry, from the elementary 'electrons (Moons) orbiting the planet (nucleus)' To somewhat complicated chemistry such as Sub-atomic orbitals, and Hybrid orbitals etc. Now, i noticed that as chemistry gets more 'complicated', it just about becomes like physics. Even famous 'chemists' such as schrodinger (sp?) as shown in my textbook are really chemists working on quantum physics (which i privately am interested in) So my question is: Is there a clear border-line between the sciences? Or does it all end up being the same thing in a different form. EDIT: Just another thing to add, would it appropriate to say 'inorganic' chemistry is more towards physics than 'organic' (study of carbon) chemistry is?