A.3 | B.7 | C.8 | D.10 |
A.锂离子的结构示意图: | B.碳原子的轨道表示式: |
C.丁烷的最简式:C2H5 | D.氯化镁的电子式: |
A.K | B.L | C.M | D.N |
A.Fe:1s22s22p63s23p63d54s3 |
B.Fˉ:1s22s22p6 |
C.K:1s22s22p63s23p64s1 |
D.Kr:1s22s22p63s23p63d104s24p6 |
A.只能是7 | B.只能是15 | C.是11或15 | D.是11或13 |
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