Inert gases like neon and argon have eight electrons in their outer shell.

像氖和氩这样的惰性气体，在它们的外电子层有8个电子。

《柯林斯英汉双解大词典》

Only electrons in the outer shell can form chemical bonds, so the elements in each column are chemically similar.

只有外层内的电子才会形成化学键，因此每一列中各元素化学性质均相似。

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All noble gases have the maximum number of electrons possible in their outer shell (two for helium, eight for all others), making them highly stable.

所有的稀有气体元素的最外层电子数都是该层最大的可能数目：氦的最外层电子有两个，其它的稀有气体最外层电子数是八。这使稀有气体非常稳定。

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So the 3 s 1, or any of the other electrons that are in the outer-most shell, those are what we call our valence electrons, and those are where all the excitement happens.

它们是经常发生激发情况的,那也是我们所看到，我们称之为价电子，它们是经常发生激发情况的。

麻省理工公开课 - 化学原理课程节选

Whereas for fluorine, fluorine is smaller than f minus is the one that's the outer shell shown here.

而对于氟来说，氟原子更小,与外部壳层在这的负一价氟离子相比。

麻省理工公开课 - 化学原理课程节选

And, these outer shell electrons are termed valence electrons.

这些外层电子被,称作价电子。

麻省理工公开课 - 固态化学导论课程节选

The outer shell has plenty of ventilation to hopefully send that sweat skyward.

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The laser, which made a rapid-fire popping sound, cut cleanly and quickly through the outer shell of a hard-boiled egg.

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In essence, the idea is that the only thing really phone-like in a phone anymore is the outer shell: inside is a laptop waiting to break free.

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