Not to burst your bubble, but I know a Chem professor or two who would view "physics" as less than concrete as well.
Given the apparent arbitrary characteristics that certain molecules (and even numbers of molecules) display, they give solid reasoning to state that any focus in science is as good as any school of philosophy. (And science BEING a philosophy is even easier to understand)
But, some philosophers might regard science as unfortunate and ultimately futile, something some of the more reflective and mature scientists might do as well.
Clumps of small numbers of molecules or atoms often have radically different chemical and physical properties than the mega-numbers assumed in the CRC for solids, liquids and gases.