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| | | | | | | | | | | | | ① | ② | | ③ | |
| ④ | | | | | | | | | | | ⑤ | | | ⑥ | ⑦ | ⑧ |
⑨ | | | | | | | | | | | | | | | | ⑩ | |
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A.HX | B.H2X | C.XH4 | D.XH3 |
A.ⅦA族元素是同周期中原子半径最大的元素 |
B.ⅦA族元素是同周期中非金属性最弱的元素 |
C.ⅦA族元素的最高正价都是+7价 |
D.ⅦA族元素其简单阴离子的核外电子层数等于该元素所在的周期数 |
A.BF3 | B.CCl4 | C.H2O | D.PCl5 |
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