No, a proton cannot be isolated from a hydrogen atom without separating it into its constituent parts. In a hydrogen atom, the proton is bound to an electron by the electromagnetic force, forming a stable structure. The electron and proton are held together by their mutual attraction, which is balanced by the repulsion between their like charges.
To isolate a proton from a hydrogen atom, it is necessary to break this electromagnetic bond between the electron and the proton. This requires supplying enough energy to overcome the forces holding them together. Once separated, the proton can exist independently as a charged particle.
It's worth noting that in some extreme conditions, such as those found in particle accelerators or certain high-energy processes, protons can be separated from atoms and exist in a free state. However, this involves energetic collisions or interactions that disrupt the atomic structure. In normal conditions, where atomic interactions dominate, protons remain bound within atoms.