Smallest five elements at the front.

最小的五个元素到前面了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Here is an example that shows some very, very metallic elements, groups one and two, and some non-metallic elements over here, five, six and seven.

举个例子,这个例子表明金属元素，第一族和第二族，与一些非金属元素,在这里，第五族，第六族，和第七族。

麻省理工公开课 - 固态化学导论课程节选

Any one of these different elements could actually produce a photoelectron spectroscopy spectrum that has five distinct lines.

其中任何一种元素,都可能产生,有五条分立谱线的光电子能谱。

麻省理工公开课 - 化学原理课程节选

All of these from the group one and two through the group five and six elements, but what about elements, what about molecules like hydrogen, or nitrogen, or maybe oxygen?

所有的这些都是来自于第一主族和第二组主族,到第五主族和第六组主族的悬殊，那么元素呢，比如氢气，氮气或氧气那样的分子呢？

麻省理工公开课 - 固态化学导论课程节选