Aladdin Posted September 15, 2008 Share Posted September 15, 2008 What is duplet rule? Link to comment Share on other sites More sharing options...
DrP Posted September 15, 2008 Share Posted September 15, 2008 Is it like the 8 electron rule, but for the S shell - i.e Hydrogen? It means the Hydrogen atom must have 2 electrons to fill its outer shell and be in a stable bond. Like larger atoms which need 8 to fill their shells. It's why Hydrogen only forms one bond - because it needs just one more electron to fill its shell. Carbon on the other hand needs 4 bonds, beacause it needs 4 more electrons to be stable - thus giving it 8 in total. (2 in the s orbital and 6 in the p). Is that what you meant - or have I completely missed the point:D? Link to comment Share on other sites More sharing options...
Aladdin Posted September 15, 2008 Author Share Posted September 15, 2008 I don't really get it.. Is it the same as octet rule? Which react to become stable? Link to comment Share on other sites More sharing options...
DrP Posted September 15, 2008 Share Posted September 15, 2008 Yes, I think that's what you mean - like the octet rule, but for smaller atoms like Hydrogen and Helium where their outer shell is the s orbital. So they need 2 electrons to fill the shell. The larger atoms need 8 because they have to fill the s-orbital (2 electrons) and the p-orbital (6 electrons) - thus 'octet' rule - 8 electrons. Link to comment Share on other sites More sharing options...
Aladdin Posted September 15, 2008 Author Share Posted September 15, 2008 Ah Ok, thanks.. Link to comment Share on other sites More sharing options...
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