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Posted: Fri Dec 07, 2018 3:43 pm
How do you determine the polarizability between molecules? For example between I- and Cl2-?
Posted: Fri Dec 07, 2018 4:07 pm
The ion will have bigger polarizability when it is bigger, has less electronegativity and less positive charge. So I-has larger polarizability.
Posted: Fri Dec 07, 2018 6:25 pm
It is not necessarily only based on the charge. For the most part it is, however it is based on the size. Take O2- and N3- for example. N3- is more polarizable because it has less protons and therefore a lesser pull on the electrons.
Posted: Fri Dec 07, 2018 9:50 pm
The bigger atom will be more polarizable, so going a group, the polarizability of atoms will increase. This includes group 17, in which case I- would have higher polarizability.