Not in a mathematical sense you’re not – and no, that doesn’t mean you can’t apply maths to what is happening there
But the fact that there is a mathematical sense and an non mathematical sense demonstrates that it is a model. And yes, In mathematics, 1+1 maybe 2, but it does not apply to everything. Yes, adding atoms works but that is remodelling the situation, which is entirely sensible but then you in are refraining the situation so that the mathematical model cam be applied. That does not contradict anything I have said