Bertybassett
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Hello, I have some questions in regards to a level chemistry. Firstly, if we compare the values attained for the lattice enthalpy of dissociation from born haber cycle vs using the perfect ionic model, if the born haber value is greater, does this mean that there's is some covalent character present in the bonding, and if so, does this mean that the presence of covalent character makes the bonds between the ions stronger and hence requires more energy to overcome and break? Can the same be said for lattice enthalpy of formation?

Also, when constructing born haber cycles, in the atomisation "steps" does it matter which element goes first/second? I understand that if we are dealing with a group two element it goes second, what about other elements?

Many thanks
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Bertybassett
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ChemistryWebsite hi can you please help me with this? thanks
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