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価電子は5つ。 窒素N(7) リンP(15) ヒ素As(33) アンチモンSb(51) ビスマスBi(83) モスコビウムMc(115)
化学
Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO? Memorize 1
Hakuken
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