RE: I always wondered You are a real dummy. It is actually Cupper and that’s how it is written all over the world except North America where it is written Copper. And if you check the periodic table (if you even know what that means) the symbol of the element Cupper is Cu and not Co for obvious reasons. Same thing with Sulpher (rest of the world) and Sulfer (North America). By the way did you get your head checked yet, as I have advised you in my previous messa ... cause I’m pretty sure a chimpanzee has a higher level of intelligence than you do.
N.B. And by the way I have a B.Sc. in Chemistry (and not a technologist diploma) from one of the top ten universities in the world.
Cheers!