ok... it's got to be rhodium but i've tried that and its symbol... no luck. I don't get the source code. Don? There is no element with don... I'm sure that I'm thinking too much but...

Well if it's got to be Rhodium, why doesn't it work?

The answer is not a metal. Does that narrow it a bit? :)

I'm totally stumped on this one...I've tried to do research, but I don't even know what I'm reading.

If anyone feels generous, a little help would be greatly appreciated. :D

The place where hints are tells you what to research. Maybe start there.
This is stuff I learned in high school and have since forgotten. :rolleyes: