Chemistry

Chemistry

Problem

How many of the following compounds/ions have bond order 1.5 SO42−,C6H6,O3,O2−,N2−,SO32−,PO43−SO_4^{2-}, C_6H_6, O_3, O_2^-, N_2^-, SO_3^{2-}, PO_4^{3-}
Intuitive explanation

Bond order measures how many electron pairs are shared between atoms on average—it's the key to understanding molecular stability and structure. For polyatomic species, you'll need to use resonance structures: draw all valid Lewis structures, count the total bonds between two atoms across all forms, then divide by the number of resonance contributors. A bond order of 1.5 means the bond is halfway between a single and double bond, which happens when resonance creates equal contributions of single and double bonding.

Intuitive explanation

Bond order measures how many electron pairs are shared between atoms on average—it's the key to understanding molecular stability and structure. For polyatomic species, you'll need to use resonance structures: draw all valid Lewis structures, count the total bonds between two atoms across all forms, then divide by the number of resonance contributors. A bond order of 1.5 means the bond is halfway between a single and double bond, which happens when resonance creates equal contributions of single and double bonding.

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