试题 试卷
题型:填空题 题类:常考题 难易度:普通
2015-2016学年山西省大同一中高二下学期月考化学试卷(3月份)
①Ca2+:1s22s22p63s23p6
②F﹣:1s22s23p6
③
④Cr:1s22s22p63s23p63d44s2
⑤Fe:1s22s22p63s23p63d64s2
⑥Mg2+:1s22s22p6
⑦
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