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Inorganic Chemistry

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18 Mar 2010 17:34:43 IST

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how to find bond order.????..i mean how 2 decide no. of electron in bonding and anti bonding orbital

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how to find bond order.????..i mean how 2 decide no. of electron in bonding and anti bonding orbital?????????

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shubham mishra

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18 Mar 2010 17:40:18 IST

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ny 1????

Aakash Anuj

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18 Mar 2010 17:40:55 IST

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I am going to tell u a great way to find bond order. Bond order is the ratio of the total number of bonds in the molecule to the total number of resonating structures. If u take benzene, the total bonds are 15 and there are 5 resonating structures. Sothe bondd order of benzene is 15/5 = 3. For diatomic molecules, u need to refer to the molecular orbital theory for being capable to find out the bond orders.

G.Reshma begum

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18 Mar 2010 19:34:31 IST

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B.O=(no. of e^-in the bonding orbitals - no. of e^- in the anti-bonding orbitals)/2

Krishna Gopal Singh

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18 Mar 2010 20:06:39 IST

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Right answer Reshma. But shubham want to find how to find bonding and anti bonding electrons. Shubham for finding bond order of homonuclear diatomic molecules upto atomic number 9 a sequence of orbitals with increasing energy can be found in any text abiut molecular orbital theory. You can use that sequence and fill electrons following Hund's rule and Pauli's exclusion principle. Finally count the number of bonding and antibonding electrons.

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