帮我描述一下零族定位法可以么

棒飞飞巨蟹 2014-03-15 08:30:19 420 浏览

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zhaoyujiee18 2014-03-16 00:00:00

根据元素周期表，记零族元素原子序数，再来判断所求元素

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就雀驯费堆趾 2014-03-16 00:00:00

。。。需要吗直接记Z外电子层2n平方

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