[budullewraagh]

can anybody here tell me the electronegativities/electropositivities of polyatomic and monoatomic ions? is there an activity series?

[Demotivator]

By definition, electronegativities are limited to atoms to account for bond behavior between atoms.

[budullewraagh]

right, and bonding applies to polyatomic ions.  you know what i'm talking about.

[Mitch]

Not applicable. I think you may be misunderstanding reactivity of an ion versus electronegativity of a bond. Electronegativity is actually a nifty topic and I may address it in a future article.

[budullewraagh]

you know, i did mention "activity".  got any responses for activity?

[Demotivator]

Are you familiar with the electromotive potential series for ions for oxidation reduction reactions?

[budullewraagh]

very much so.  however, i do not know how this works with polyatomics.

[Demotivator]

Well, it doesn't work if the aim of your question is bonding. But  for polyatomics  it's a measure of the ability of the element in a polyatomic to reduce, for eg.
NO3- + 4H+ +  3e- ---> NO + 2H2O  E=+.96 (nitrogen reduction)
MnO4- + 8H+  + 5e- ---> Mn2+  + 4H2O  E=+1.49 (Manganese reduction)

[budullewraagh]

may i ask where you found those figures?

also, do you have an activity series?

[Demotivator]

Here
http://www.csudh.edu/oliver/chemdata/data-e.htm
or appendixes of analytical textbooks.

An Activity series doesn't come to mind, but I'll let you know if I come across one.

[budullewraagh]

many thanks