The electron affinity of the members of oxygen of the periodic table, follows the sequence- O>S>Se . Is it right?
Dear Student,
The electron affinity order of members of oxygen of periodic table is:
S > Se > O
As we go down the group, the atomic radius increases, the electron affinity decreases. But the size of O is very small, so there is more electron density. The electron electron repulsion is more while adding the electron. Thus, the electron affinity for O is lowest. the order given by you is wrong.
Regards
The electron affinity order of members of oxygen of periodic table is:
S > Se > O
As we go down the group, the atomic radius increases, the electron affinity decreases. But the size of O is very small, so there is more electron density. The electron electron repulsion is more while adding the electron. Thus, the electron affinity for O is lowest. the order given by you is wrong.
Regards