When answering a question like that, most of my uncertainty is uncertainty about my interpretation of the question rather than my expectations about the world. I expect my cells to continue functioning and my computer to continue working (p> 80 decibans and 70 decibans respectively), if I mix HCl and NaOH I still expect to get saltwater (p > 60 decibans), and if I shoot a beam of ionized Hydrogen atoms through a magnetic field in a vaccuum, I expect that the beam will curve with a specific radius. If I replace the ionized Hydrogen with ionized Lithium and keep all other factors the same, I expect that radius to approximately seven times that of the beam ofHydrogen atoms (with a few atoms curving at a radius of 6 times that of the Hydrogen if they're some Lithium-6 mixed in) (p > 60 decibans). I expect nuclear fission to continue working, and so expect that some atoms will be divisible into multiple smaller atoms, though that manifests as a belief that nuclear power plants will keep working (p > 60 decibans).

On the other hand, I expect that I understand your question, but not with anywhere near the level of certainty as I have that I will continue to see the physical processes above operating as I've observed them to operate in the past. And even with you saying it's not a trick question, I'm more certain that the predictions made by atomic theory will provide an accurate enough description of reality for my purposes than that this isn't a trick question. And I'm almost positive this isn't a trick question.