那么，我们可以说--如果我们这里有氖原子,而我们想知道与它等电子的是什么，负一价的氟离子就是与它等电子的，我们还有氧-,氧应该是几价的？

So, we can say that -- if we have neon here and we want to think about what's isoelectronic, -- f minus would be isoelectronic. We also have oxygen -- what would the charge on oxygen be?

youdao

因为铝离子为正三价,氧为负二价。

Because aluminum ions have charge of plus three and oxygen ions have charge of minus two.

youdao

硅原子占据了氧原子之间的空隙并且和四个氧原子共用化合价。

The silicon atom occupies the space opening( interstice)between the oxygen atoms and shares four valence electrons with the four oxygen atoms.

youdao

Because aluminum ions have charge of plus three and oxygen ions have charge of minus two.

因为铝离子为正三价,氧为负二价。

麻省理工公开课 - 固态化学导论课程节选

So, we can say that -- if we have neon here and we want to think about what's isoelectronic, -- f minus would be isoelectronic. We also have oxygen -- what would the charge on oxygen be? Um-hmm, right. 2 minus.

那么，我们可以说--如果我们这里有氖原子,而我们想知道与它等电子的是什么，负一价的氟离子就是与它等电子的，我们还有氧-,氧应该是几价的？没错，负二价。

麻省理工公开课 - 化学原理课程节选