The pair of which addition of 2 nd electron in both \( \mathrm{P} \...

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The pair of which addition of 2 nd electron in both
\( \mathrm{P} \) the atoms are endothermic:

W
(1) N, Ne
(2) \( \mathrm{Be}, \mathrm{F} \)
(3) \( \mathrm{B}, \mathrm{C} \)
(4) All of the above
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