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Why energy is released so much in electron gain enthalpy in elements at right of periodic table than left ... how does it increase gradually accross it ... please answer soon and in a very lucid manner.
will be very thankful
at the right side the EA is more negative since they have more electrons in outermost shells and easily accept electrons.
but at the left the elements have less electrons in valence and need more energy to attract electrons but due to less electrons the inter electronic repulsion is less and the EA is positive.
Hope it helps you.
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