First of all, I'm not sure whether "p2" is a typo and the author of this question meant to say "2p," OR if there is some chemistry-related p2 valence electron I am not familiar with (which, admittedly, is very possible).
Second, I already tried boron and aluminum as answers, (based on the assumption that 2p was meant instead of p2) and they didn't work...
Any ideas? They would be greatly appreciated.
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