A challenge I came across was I would make a atom but then I would see something very different. I think a atom looks like this because atoms are so small and strong I think atoms are in a ball but not actually a ball and inside that there is protection and inside is a ball the real atom. A really exciting part of building my atom was finally seeing what a atom looks like in at least my mind.
My atom most closely resembles JJ Thomson in 1897, because it is a bunch of objects stuck together.
An flaw in my atom is that I have something around my neutrons and protons but it does not move. An accuracy about my atom is that my proton is round