Q. from left to right in a period electron gain enthalpy (a)________because size decreases.
From top to bottom in a group electron gain enthalpy (b)________ because size increases.
Fill in the blanks(Increases/decreases).
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Positive .Increases , Decreases
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Answer:
Electron affinity increases from left to right within a periodic table
Electron affinity decrease from top to bottom within a periodic table
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