| 2. | In doing so , they have shown that the predictions of chemistry ' s central blueprint , dmitri mendeleev ' s periodic table , extend reliably into the realm of heavy , short - lived , radioactive elements that do not exist in nature 在这些工作中,他们显示预测化学的主要蓝图:门捷列夫的元素周期表,即拓展自然界不存在的但可信赖的重的,短期,放的射性的元素。 |