Who Discovered

[WHS Student]

i need to know the people who discovered the following elements. some of the discoverers dont need to be specific, like general civilizations would be good enough, but if i can get names of scientists that would be great.
-Nickel
-Palladium
-Platinum
-Copper
-Silver
-Gold
-Zinc
-Cadmium
-Mercury

[RobJim]

Try searching for those elements here:

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

If you still don't have all the answers, check Google.

Then come back here and report on what you've found and I'll help some more.