On Sat, 19 Apr 2008 11:52:23 +0200, Orchid XP v8 <voi### [at] devnull> wrote:
> Right. So unusual configurations of Carbon form a semiconductor, diamond  
> is a good insulator, and graphite is an excellent conductor. Looks like  
> the electronic properties of a substance are *totally* determined by  
> their position on the periodic table to me. Oh, wait...

Nobody said that valence electrons were the *only* factor determining the  
electrochemical properties of matter, just that it is an important one.

Besides, diamonds make really good semiconductors too:
http://www.geek.com/81ghz-diamond-semiconductor-created/


-- 
FE

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