Hey, I know this is probably a basic question but I've always been more into biology and only got into physics in the past 2 or 3 months. I'm having touble understanding the relationship between particle/wave duality of an electron and its jump from one state to another. how does this prevent the electron form having intermediate states of excitement? from what I read, it seems like this particle/wave duality has something to do with it, but i don't quite understand how. edit: ok, i think i kinda get it but I still want to make sure: the picture i get in my head is of a string connected at both ends (i get this from some of the graphical representations I've seen around). this string has a bunch of waves going through it, and the size of the waves has to be consistent throughout the string, while still remaining connected at both ends. so, since the waves cannot be divided into anything but wholes without disconnecting at both ends, then it has to "jump" from one frequency to the other. would this be an accurate way to see it? (please try not to use complicated mathematical formulas; it appears the math part of my brain was lobotomized when I was a zygote) thanks!