korosh23
  • korosh23
Chemistry question!
Chemistry
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korosh23
  • korosh23
Chemistry question!
Chemistry
jamiebookeater
  • jamiebookeater
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korosh23
  • korosh23
As we know Nitrogen has a combining capacity of 3
korosh23
  • korosh23
Then why does it form 4 bonds with oxygen in this example NO3-
korosh23
  • korosh23
?

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korosh23
  • korosh23
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sweetburger
  • sweetburger
Wait i just realised im not sure I understand your question is the molecule NO3 3- or NO 3-?
korosh23
  • korosh23
I am sorry, that has to be NO3- My bad.
korosh23
  • korosh23
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korosh23
  • korosh23
?
sweetburger
  • sweetburger
The nitrogen forms 4 bonds with the Oxygens to fullfill the octet necessary for each atom to be stable in this configuration.
sweetburger
  • sweetburger
if you are wondering how the negative charge comes about i can somewhat explain that
korosh23
  • korosh23
but Nitrogen has a combining capacity of 3 meaning that it cannot have more than 4 bonds?
sweetburger
  • sweetburger
Ya nitrogen could not have more than 4 bonds. Nitrogen can not expand its octet i believe only elements after Neon can expand there octet.
sweetburger
  • sweetburger
Or specifically only elements that have a atomic number higher than 10 can expand there octet. If i remember correctly.
sweetburger
  • sweetburger
So yea Nitrogen is limited to 4 bonds which would have Nitrogen sharing 8 electrons with its surrounding atoms.
korosh23
  • korosh23
No, nitrogen should be limited to 3 bonds, since combining capacity means the maximum number of bonds it can form. Do you mean Nitrogen is an exception?
sweetburger
  • sweetburger
Ok look at this
sweetburger
  • sweetburger
|dw:1434312634630:dw|
sweetburger
  • sweetburger
Then the Nitrogen completes its octet and each oxygen completes its Octet
sweetburger
  • sweetburger
I dont really know what this number of bond limits your talking about is. I know what is important and it is that each element has a full 8 valence electrons in the ion.
korosh23
  • korosh23
Yes you are right. Combining capacity is the number of electron an element needs to become stable. It is not related to this topic. I got it. Thanks.

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