• Versus looking at, for example, helium or neon or argon, these are all inert gases, inert meaning essentially do not react, those were grouped together in the periodic table.

    相反,他发现氦,氖,氩,都是惰性气体,惰性的意思是基本不参与化学反应,因此把它们放在周期表中的同一类里。

    麻省理工公开课 - 化学原理课程节选

  • Similarly we see as we go down the table, so as we're going from one row to the next row, so, for example, between helium and lithium, we see a drop; the same with neon to sodium, we see a drop here.

    同样地,我们来看看沿着周期表往下走,当我们从一行到下一行时,比如,从氦到锂,我们看到了一个下落;,从氖到钠也一样,我们看到这里有个下落。

    麻省理工公开课 - 化学原理课程节选

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定