On a periodic table it shows that Zn and Cd and Hg all have 0 electron affinity. Why is that?
What I've noticed
I've noticed that these three elements are the end of the D orbital and they are completely full, i think that it has to do something with that But i am not entirely sure
Part two of question
Why is electron affinity expressed in negative numbers? Ex: Cs=-45.5kj/mol