User suggestion: Increase number of electrons to show second shell is full

[oliver-phet]

I'm a physics and chemistry teacher at Ballard High School in Seattle and I have a suggestion for improving the Build an Atom PhET sim. I think it would be educational to add one more electron to the "bucket" of electrons so that students can see that the 2nd shell is full when it contains 8 electrons, i.e. when they try to add a 9th electron it gets rejected. Otherwise there's no indication that the 2nd shell is full, like there is with the 1st shell.

[arouinfar]

This is an interesting suggestion, and it seems like something we could likely accommodate. We can wait to evaluate it as a team when the simulation is next scheduled for republication. Unassigning myself.