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

First of all, this is the two s orbitals in hydrogen, 1s plus 1s smearing to give us this sigma molecular orbital.

首先，这是氢气中的两个s轨道，1s与1s轨道重叠,产生sigma分子轨道。

麻省理工公开课 - 固态化学导论课程节选

Later on, we'll learn that hydrogen as we typically encounter it is H2, the molecule.

之后我们知道,氢气是H2，是一个分子。

麻省理工公开课 - 固态化学导论课程节选