In science is chemistry or physics the more mature discipline?

Answer 1

If by "mature" is meant completely grown or a science having reached its apex, then neither chemistry nor physics have stopped growing. They both are important sciences. Chemistry is the only science which can actually *change* one molecule into another. Physics, these days, deals mostly with sub-atomic particles. We need both chemistry and physics. Chemistry has contributed the most to civilization, but physics has made some significant advances also.

Answer 2

Physics is generally considered the more mature discipline compared to chemistry. Physics has a longer history of rigorous theoretical frameworks and has been foundational in shaping other scientific disciplines, including chemistry. Chemistry, while also a well-established field, emerged as a distinct discipline later than physics.