What is electro affinity?

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electron affinity of atom or molecule defined amount of energy released when electron added neutral atom or molecule form negative ion. ability gain electrons related position on periodic table. should recall go left right on periodic table, attraction electrons increases , ability gain electrons increases. true way across periodic table except inert gases. there abrupt drop in ability gain electrons when inert gases. because energy level full , additional electrons have start new energy level.

how can energy lost when electron gained


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