The radius of a proton is roughly 10^-15m, while the radius of a hydrogen atom is about 0.5x10^-10m. If we were to enlarge both proportionally until the proton was as large as a marble, about how large would the atom be?

Question

anonymous · Answer

I get 300m, but don't think it is correct. :$

anonymous · Answer

Why not?

anonymous · Answer

Depends on the size of your marble, of course...

anonymous · Answer

It's an awful large hydrogen atom. I assumed a marble of radius 0.6cm.

anonymous · Answer

It is rather large, isn't it?  Seems like it's made almost entirely of empty space...

anonymous · Answer

Don't worry, you didn't make a mistake.