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The electron affinity value are negative for : A. Be  Be – B. N  N – C. O  O 2 – D. Na  Na – E. Al  Al – Choose the most appropriate answer from the options given below :

1. D and E only
2. A, B, D and E only
3. A and D only
4. A, B and C only

Correct answer: A, B and C only

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