Question

Electron Affinities are positive for the elements of group.
(1) IV A (2) VII A (3) II A (4)0

Answer 1

Answer:

Electron Affinities are positive for the elements of group 0

Explanation:

Electron Affinities are positive for the elements of group 0(inert gases) because they have stable electronic configuration. So to add an electron in their stable electronic configuration we need to give energy means its an endothermic reaction.

So Electron Affinities are positive for the elements of group 0.

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Answer 2

Answer:

I think that is IV A and 0 is the right one