Hi all, I have a few questions regarding electron shells and seeing if they should be intuitively connected to de Broglie's description of electrons as waves. I teach high school level and occasionally get wild questions...if I can ever help a student in the slightest I am inclined to try. So, am I correct in the following? The 1s subshell can be envisioned as a standing wave wrapped around the nucleus. The waveform has 1 crest. The crest of one wave represents a single electron, and the trough of the same wave might also represent another electron if the shell is filled completely. They must be out of phase to agree with the Pauli exclusion principle. If this is correct, then can it be applied to all remaining subshells? Thanks in advance.