free electron

基本解釋

This represents the free electron.
這就是自由電子。
It is a free electron so there is no potential energy to be accounted for.
對(duì)于自由電子,因此沒有什么勢能。
But we see if we have a free electron, as we do in this dotted line here, that's going to be a higher energy that's less stable.
但是我們看到如果,我們有一個(gè)自由電子，就像虛線所示那樣，那將會(huì)是一個(gè)較高的,不夠穩(wěn)定的能量。

This should make sense, because if an atom has a very high electron affinity, that means it's really happy taking an electron from another atom, or taking a free electron -- that that's very favorable.
這應(yīng)該是合理的，因?yàn)槿绻粋€(gè)原子有很高的電子親和能，這意味著,它非常樂意從另外一個(gè)原子那里奪取一個(gè)電子，或者得到一個(gè)自由電子--這是非常利于發(fā)生的。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
But we see if we have a free electron, as we do in this dotted line here, that's going to be a higher energy that's less stable.
但是我們看到如果,我們有一個(gè)自由電子，就像虛線所示那樣，那將會(huì)是一個(gè)較高的,不夠穩(wěn)定的能量。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
It is a free electron so there is no potential energy to be accounted for.
對(duì)于自由電子,因此沒有什么勢能。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選

The high average power infrared Free Electron Laser (FEL) provides intense beams of laser light that can be tuned to atmosphere-penetrating wavelengths.
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any electron that is not attached to an ion, atom, or molecule and is free to move under the influence of an applied electric or magnetic field