I1I2I3I4I5I6I7145296的知识精选

某元素的电离能如下,此元素位于元素周期表的族数是(  )I1I2I3I4I5I6I714.529.647.47...
问题详情:某元素的电离能如下,此元素位于元素周期表的族数是()I1I2I3I4I5I6I714.529.647.477.597.9551.9666.8A.ⅡA                         B.ⅢAC.ⅤA                  ...
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