in order to relate the quantum numbers to an electron configuration, it's first important to know how to number the electrons within an electron orbital diagram. We're going to say here that electrons within configurations are numbered in the order. They're written based on the off about principle. Remember, with the off about principle, we start out with one s orbital and we move onward. So one s in two s than two p, and so on. Knowing this order is the key to numbering the electrons correctly and from there will be able to link the quantum numbers to them.