如果這一極重要的自然規律,元素週期律,竟至今還沒有被發現的話,我們試想一下,我们的化学科学將成为一種什么样的情狀?那将是許許多多的孤立的瑣碎的事實的堆集,没有一點系統,新的事實無法預見,實驗的結果也難以確定其是否正確;總之,是一種混亂的狀態。這對於学習、研究以及運用化学知識去解决生產技术的人們,將造成何等大的困難,而另一方面,我們也無法想像 If this very important law of nature, the law of the periodicity of the elements, has so far not been found, let us imagine what our chemical science will be like? It will be a matter of isolation of many trivial facts There is no system at all, new facts are unforeseeable, and the results of experiments are hard to determine if they are correct; in short, it is a chaotic state. This is a great challenge to those who study, research and apply chemical knowledge to solve the problem of production technology. On the other hand, we can not imagine