Looks cool in persistent when it starts to destabilise.
Not really an atom, unless it's a really underdeveloped atom.
2. The correct numbers of electrons in each shell and the correct number of electrons overall. Also see of you could arrange the electrons into four groups of two in each of the 8-shells. Then it would look like a proper moving Bohr diagram :). You could also make it a noble gas and put a little sample of NBLE next to it.
To make it more realistic, there should be: 1. Fewer protons and corresponding number of neutrons in the nucleus. you could do this by inserting the correct numbers of protons and neutrons and changing their life to a high number to make them last longer (!set life prot 999999 in the console).
This is a nice model, but I don't know of an element #378