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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: zeshkani on February 18, 2007, 03:42:38 PM

Title: volume occupied
Post by: zeshkani on February 18, 2007, 03:42:38 PM

hi there
how can it be proven that in a simple cubic the volum occupied is 52%, bcc 68%,  is there a possible way to prove that like in the bcc 68% is occupied by the atoms, maybe mathematically ? or any other way ?

thanks

Title: Re: volume occupied
Post by: Borek on February 18, 2007, 09:41:45 PM

Simple geometry.

Title: Re: volume occupied
Post by: DevaDevil on March 12, 2007, 05:53:37 PM

calculations of it are all over the net, just search for e.g. unit cell packing efficiency