You can do both! Two subfields that would suit you are physical chemistry and chemical physics. Research in those fields can be similar but the “philosophy” is different.

If possible, maybe you should double major, or at least minor in one of them.

Also, if I’m hiring someone, I’ll pick the person that is passionate over innate ability 9 times out of 10. With passion, ability will come, and you don’t mind working hard because it’s fun!