3(iii)
The electron affinity of an element X is greater than that of element Y.
(a) How is the oxidising power of X likely to compare with that of Y?
(b) How is the electronegativity of X likely to compare with that of Y?
(c) State whether X is likely to be placed to the left or to the right of Y in the periodic table?
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(a) Oxidising power of X > Y. Elements with high electron affinity accept electrons more easily hence have greater oxidising power.
(b) Electronegativity of X > Y. Element with high electron affinity has high electronegativity.
(c) X is to the right side of Y as electron affinity increases from left to right in a period.