It's actually a pretty poor conductor compared to cooper, silver and gold but it does do some weird things when heated (like vaporize and expand eg, get excited), as in a flourescent bulb to make enough pressure for the bulb to light (or in a thermometor to gauge temperature). and the uv is not fun stuff but thousands of people are enjoying it right this very moment in suntan salons for some strange reason.

here's a Periodic Table of Elements Sorted by Electrical Conductivity, with the least conductive listed first.

http://environmentalchemistry.com/yogi/periodic/electrical.html

I do know that when i had a porcelain covered metal crown (aluminum base, right there behind gold for conductivity) in my mouth for a few weeks my tongue felt like it could light a light bulb so something was going on. I also know my cellphone makes me very uncomfortable, it gets pretty warm after 10 minutes of chatting so I rarely turn it on except when really needed but my daughter's phone doesn't seem to bother her at all, she does not have any amalgams and has only 13 years of toxic burden otherwise to contend with too... however she is warned repeatedly to use speaker phone or lose the phone nonetheless.

It would be interesting to know what type of UV radiation is emitted by those bulbs when the electicity heats the mercury in them.. UVA, UVB, or UVC?