the noble gases

基本解釋

What do we know about the noble gases?
那我們對惰性氣體有哪些了解呢？
In other words, the noble gases of the atmosphere are isotopically heavier than those of the sun.
換句話說，這些來自大氣的惰性氣體同位素率相較那些來自太陽的氣體更加重。
In all of the known chemical compounds of the noble gases, the noble-gas atom has a net positive charge.
在為人所知的所有稀有氣體化合物中，稀有氣體原子具有凈正電荷。

I left out the noble gases here because they do something a little bit special, and actually, I'm going to give you one last clicker question today to see if you can tell me what you think noble gases do.
我并沒有把稀有氣體算在里面,因為它們的電子親和能有點特別，實際上，我將會把這作為今天的,最后一個選擇題，來請大家告訴我,你們覺得稀有氣體電子親和能應(yīng)該是怎樣的。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
We have elements that are totally inert, and we have examples of this, the noble gases, dominantly inert.
因為那些元素都是惰性的，而且我們可以舉出些例子，比如惰性氣體，完全是惰性的。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選
And the answer is yes, we know something about the noble gases.
答案是肯定的，我們對惰性氣體有所了解。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選

If the 3He imaging project succeeds, the researchers expect it to pave the way for images based on other noble gases—such as the xenon isotope 129Xe.
ECONOMIST: Medical imaging