How are atoms inside a steel arranged? Ussually we can get the data about the mass share of different elements of steel and the lattice type. But the lattice only tells us where an atom is situated, not the type of the atom. Can we tell anything about the type of the atom at a certain position? Is it random, with probabilities equal to the number share of each atom type? Or is it completely determined by some periodic structure. Or maybe none of those?