Feb 13, 2007 · My understanding is that it would be very unlikely (if not impossible) for a non-carbon based life form to exist because of carbon's incredible ability to bond (it can both get or give up 4 electrons). But silicon also shares this same property. why is organic material so much more common, and...

Jul 5, 2017 · Homework Statement I am just starting an essay on this topic and gathering info from different sources, this is the best source of info i have came across! Homework Equations Do you think it likely that life elsewhere could be silicon based? What are the similarities and...

Feb 13, 2007 · But if we would assume that the pressure and temperature wouldn´t be the same in the other enviroment. Then could Si compounds be more stable? And the oxidizer (i hope it´s like that in english) wouldn´t be O. For example F. Then SiF4 (it should be a gas) could play the role as CO2. Or is F so strong oxidizer that it would oxidize any Si compound, so the life could not stay? Or maybe the ...

May 5, 2005 · Hey all Why does Silicon Dioxide have a Giant molecular structure, while Carbon dioxide is made of simple molecules? They both have 4 electrons on their valence shells, so why wouldn't Silicon Dioxide be a simple linear molecule? (gaseous).

Aug 24, 2015 · Dear PF Forum, I have questions about carbon based life and molecule back bone. Is it true that all life on Earth are carbon based? If it is true, why? Is it because carbon is halfway in periodic table? 4 valence? What about Silicon, Tin and Germanium? They have 4 valence, why life is not based...

Jan 16, 2005 · Just another question. Since you said silicon has more stable bonding, does that mean the tetrahedral shape is more thermodynamically stable than bonds formed by phosphorus? I ask this because carbon structures, such as graphite, have more thermodynamically (but not physically) stable structure than the other structure diamond (tetrahedral).

Jul 25, 2015 · In a solid, is electron's wavefunciton confined to a molecular orbital between atoms or is it delocalized and extends over the volume? According to valence bond theory, electrons are localized in bonds between atoms. But according to band theory (or …

Feb 4, 2007 · This is a strange one, and I'm afraid I cannot help much. However, are you sure you're supposed to determine whether a *zener* diode is made of silicon or germanium? (If it's just a diode, we can inspect the forward threshold voltage, but I'm not sure about zener diodes. Could it be a question asking you to distinguish between a zener diode and an avalanche diode?) What I'd do is look up data ...

Jun 29, 2017 · Silicon vs. Carbon: Exploring the Unlikelihood of Silicon-Based Life Oct 22, 2008 2 Replies 36 Views 48K

Dec 2, 2011 · Semiconductors -- role of displaced Silicon or Germanium Revered Members, When we dope a pure Germanium or Silicon with pentavalent impurity or trivalent impurity, the dopant replaces Silicon or Germanium and bonds with neighbouring Si or Ge atom. That is Dopant takes the centre position and bonds with 4 neighbouring atoms.