The electron affinity value are negative for : A. Be → Be⁻ B. N → N⁻ C. O → O²⁻ D. Na → Na⁻ E. Al → Al⁻ Choose the most appropriate answer from the options given below :

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(4) A, B and C only. The correct answer includes options A, B, and C because these represent elements that release energy when gaining an electron, resulting in a negative electron affinity. In contrast, the other options either do not favorably gain an electron or require energy input, leading to positive or zero electron affinity values.

The electron affinity value are negative for : A. Be → Be⁻ B. N → N⁻ C. O → O²⁻ D. Na → Na⁻ E. Al → Al⁻ Choose the most appropriate answer from the options given below :

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