One hour left till my exam starts, Need urgent help with question PLEASE!! *Covalent*
We're told to draw the dot and cross diagram, but why do some o2 molecule form a double bond whereas the central oxygen does not form a double bond?!
The pic below is from the marscheme!
The pic below is from the marscheme!
(edited 8 years ago)
All oxygen atoms form two bonds and all atoms have 8 e-. They are the important bits. There are combinations of normal covalent bonds in the middle O and dative covalent bonds for the other four.
I suspect there is either more info in the Q than you've given, or it is similar to a required structure.
I suspect there is either more info in the Q than you've given, or it is similar to a required structure.
Original post by Adorable98
We're told to draw the dot and cross diagram, but why do some o2 molecule form a double bond whereas the central oxygen does not form a double bond?!
The pic below is from the marscheme!
The pic below is from the marscheme!
A double bond can be described as an atom sharing two pairs of electrons with another atom to form a bond. The central oxygen atom is forming a bond with two other atoms, therefore it need only share one pair of electrons with either atom.
Hope that helps
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