1. Franklin Hu: Octahedral atoms in octahedral molecule (http://franklinhu.com/NPA20CubicAtomicModel.pdf)

 

 

2. Philipp Kanarev: Fluorine atom: white protons; gray & black neutrons: (http://guns.connect.fi/innoplaza/energy/story/Kanarev/book~)

 

 

3. Miles Mathis: Fluorine atom: blue double protons, double neutrons; black single protons: (http://milesmathis.com/xeptf6.pdf)

 

 

In each of these models the particles are balanced around a central axis, because each particle is spinning and the atoms are spinning as well.