I got a few doubts while reading Chem. thought i could ask you guys out Please Register or Log in to view the hidden image! 1. do core electrons have a significant role in determining the properties of an element? 2.what is the reason for inert pair effect? 3. do bond dissociation energy and bond energy differ in magnitude? if yes, why? 4. according to a book i read, NH3 cannot act as oxidising agent because N is already in its lowest ox state. but, why cant we consider Hydrogen's effect? for example, NH3+ 3Cl2 --> NCl3 + 3HCl in this, N in NCl3 attracts the bonded pair more because of its small size. so, Cl should have a positive ox state (+1). why is this not considered? and if it is, how is the thing explained in this reaction? Thanks in advance Please Register or Log in to view the hidden image!