at 72 degrees F .

silver,gold,copper or Aluminum

I'm thinking silver

 

The lowest resistance to what? Being hammered into different shapes? Gold.

 

Here's a chart showing Silver....at the top of the list for electrical resistivity:


http://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity

 

Here's a chart showing Silver....at the top of the list for electrical resistivity:


http://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity

Yep silver has the least resistance at 72F