A.①② | B.③④ | C.①④ | D.②③ |
周期 | ⅠA | ⅡA | ⅢA | ⅣA | ⅤA | ⅥA | ⅦA | 0 |
2 | | | | C | N | O | | Ne |
3 | Na | Mg | Al | Si | | S | Cl | m] |
A.原子半径:As>C1>P | B.热稳定性:HC1>AsH3>HBr |
C.还原性:As3->S2->C1- | D.酸性:H3AsO4>H2SO4>H3PO4 |
A.1S2 | B.2S2 | C.3S2 | D.4S2 |
A.D和H | B.Ar和Ca | C.O2和O3 | D.Cl和Cl |
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