I feel educated! Really cool game, it kinda made me feel like I needed to remember some chemistry which is cool since it's information I don't normally used lol and it feels good to make it useful! The graphics are really cool, the music fits just perfectly.
My suggestions would be, if you want to continue it further, in the tutorial maybe mark with orbitals are already filled? Since I got a bit stuck there when I didn't know which ones I've already filled. And the camera not being able to move when I repelled an atom :____(((. Maybe it'd be better for it to aim automatically there. But overall, really cool game :D/