Si is in the same group as carbon so has a valency of 4.
I understand that but the answer states that SO2 has single covalent bonds but co2 has double covalent bond, although they are the same in the dot and cross diagram. Why is that ? Thanks
I understand that but the answer states that SO2 has single covalent bonds but co2 has double covalent bond, although they are the same in the dot and cross diagram. Why is that ? Thanks
Si forming 4 Si-O bonds instead of two Si=O double bonds is due to the energy of it's 3p orbitals making this a more favorable situation.
The exact details of why this is are quite a bit beyond A Level, but I guess you could think of it as the Silicon orbitals which would form the pi bond not having enough "side-on" overlap with the singly sigma bonded oxygen's lone pairs to form a pi bond as these orbitals are quite a bit more diffuse than the orbitals of carbon. These orbitals however can form a sigma bond as they can have enough overlap "head-on" with the oxygen's orbitals.
Si forming 4 Si-O bonds instead of two Si=O double bonds is due to the energy of it's 3p orbitals making this a more favorable situation.
The exact details of why this is are quite a bit beyond A Level, but I guess you could think of it as the Silicon orbitals which would form the pi bond not having enough "side-on" overlap with the singly sigma bonded oxygen's lone pairs to form a pi bond as these orbitals are quite a bit more diffuse than the orbitals of carbon. These orbitals however can form a sigma bond as they can have enough overlap "head-on" with the oxygen's orbitals.
You're right, that's actually beyond my spec. It's strange because a question asking for a dot and cross diagram for so2 is just same as co2 but when asking for bonding, it's different. I will bear that in mind. Cheers!
You're right, that's actually beyond my spec. It's strange because a question asking for a dot and cross diagram for so2 is just same as co2 but when asking for bonding, it's different. I will bear that in mind. Cheers!
Yeah... I guess you could just do a dot and cross diagram of a silicon singly bonded to four oxygens? Strange question.
Are you doing OCR? Because if you are, there is a tonne of mistakes in the book
Hi, yea I am doing that but the the dot and cross diagram for so2 I am sure is right cuz that's in one of the exam questions. It is just like co2 right?
Hi, yea I am doing that but the the dot and cross diagram for so2 I am sure is right cuz that's in one of the exam questions. It is just like co2 right?
Hi, theoretically yes in terms of dot and cross but their bond angles differ
Hi, yea I am doing that but the the dot and cross diagram for so2 I am sure is right cuz that's in one of the exam questions. It is just like co2 right?
No, in sulfur(IV) oxide there is a lone pair on the sulfur atom.