EN of the element (A) is E_1 and IP is E_2. Hence EA will be

1.	EN of the element (A) is E_1 and IP is E_2. Hence EA will be
Answer» `2E_1 - E_2` `E_1 - E_2` `E_1 - 2E_2` `(E_1 + E_2)//2` ANSWER :A

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