They move so fast compared to an atom that from our perspective, they would be everywhere at once, and having an massive electron in something is not necessarily good for it. Not to mention that the nucleus would vibrate septillions of times per second, causing some severe air friction.
Also, if Marcus inflated the entire nucleus, that’s 34 beach balls. And Jason isn’t even done with 17 yet!
Early Cameo of the ‘Magic Eraser’!