We Can Figure This Out.org
Virtual Lab: How Semiconductors and Transistors Work
University of Virginia
             
 
© 2003-Present, John C. Bean
 
Now it's time to use the "Replicator" button to make a second silicon atom.

"Covalent" atomic bonds require two electrons, so the new atom will rotate one of its bonding electrons to align with a bonding electron of the first atom.

Then, so that the non-bonded electrons can get as far apart as possible, the atoms will rotate around their bond as shown.

This assembly sequence of bonding, followed by rotation to maximally separate the remaining electrons, will determine the final crystal structure.

 
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