Exposed ground line a problem in teensy board bount?

[zalterman]

Hey guys - Im soldering my teensy and two multiplexers onto a board and wanted to make a ground line since there are so many parts of my circuit that get pulled to ground. Im using some 22 gauge copper wire for this but just realized the possibility of it acting as an antennae...do you think it will be ok?

and if you advise against it - any alternatives?

 

[PaulStoffregen]

This will probably be fine.

If you're really concerned about picking up RF signals, run the signal wire along the same path as the ground wire, keeping the 2 wires as close as reasonably possible.