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Atomic radius (average distance from the center to the outermost isolated electron) of copper 135pm, silicon 0.11pm.

2nm is 7 copper atoms or 9 silicon atoms.

And for our next trick ... ... pattering to drive transistor switching rather than just transistor etching!

Maybe we can construct transistors using subatomic particles. If only we can convince those quarks and bosons to do calculation for us...