镓表现出的性质与门捷列夫对“铝下元素”的预测密切对应，为周期律提供了有力的支持。

The close correspondence between the observed properties of gallium and Mendeleyev's predictions for eka-aluminum lent strong support to the periodic law.

youdao

那么，让我们举一个小例子来看一下，你是如何不能将元素周期律用在所有地方的，它是有局限性的。

So, let's just take a quick example to show how not completely you can use these periodic trends, that there are limits.

youdao

好的，这是一个关于使用元素周期律的反例。

All right. So that is an anti-example of using periodic trends.

youdao

So, let's just take a quick example to show how not completely you can use these periodic trends, that there are limits.

那么，让我们举一个小例子来看一下,你是如何不能将元素周期律用在所有地方的，它是有局限性的。

麻省理工公开课 - 化学原理课程节选

But you actually need to keep a few caveats in mind as you do this, which is the fact that trends predict a lot of chemical properties, but they can't predict everything in terms of biological properties.

不过在你使用的过程中,需要牢记一些注意事项,那就是元素周期律可以预言很多化学性质，但是不能预言一切性质,比如生物学性质。

麻省理工公开课 - 化学原理课程节选

All right. So that is an anti-example of using periodic trends.

好的，这是一个关于使用元素周期律的反例。

麻省理工公开课 - 化学原理课程节选