元素�期表中前七�期的元素种数如下表请分析�期数与元素种数的关系.预言第八�期最多可能含有的元素种数为 �期一二三四五六七元素种数 Template




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tomski元素�期表中前七�期的元素种数如下表请分析�期数与元素种数的关系.预言第八�期最多可能含有的元素种数为 �期一二三四五六七元素种数 coloring