No.26 原子核に含まれる陽子の数は各元素に固有のもので、この陽子数を原子の[ア]と呼び、陽子数と中性子数の和を[イ]と呼ぶ。
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⭕️ | [[ AnswerCalc[0] ]] % | A | [[ AnswerCalc[1] ]] |
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