A.O:1s22s22p4 | B.P:1s22s22p63s23p3 |
C.Cr:1s22s22p63s23p63d54s1 | D.Mn:1s22s22p63s23p63d54s2 |
A.2s22p3 | B.2s22p4 | C.2s22p5 | D.2s22p6 |
A.2 | B.8 | C.10 | D.18 |
A.XO32- | B.XO3- | C.XO42- | D.XO4- |
A.XY2是以极性键结合成的非极性分子 |
B.XY2、XZ2的化学键类型和晶体类型都相同 |
C.WY、ZY2分子中所有原子最外层都为8电子结构 |
D.离子半径大小顺序为Y<W<Z |
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