electron affinity

基本解釋

Electron affinity, however, can be either negative or it can be positive.
但是，電子親和能既可以是負的,也可以是正的。
To answer this question you just really want to think about what does electron affinity means.
要想答對這個問題,你只需要好好想一想,電子親和能的真正意義。
Electron affinity is actually the ability of an atom, or we could also talk about an ion to gain electrons.
電子親和能其實就是一個原子，或者我們也可以討論離子獲取電子的能力。

Electron affinity is actually the ability of an atom, or we could also talk about an ion to gain electrons.
電子親和能其實就是一個原子，或者我們也可以討論離子獲取電子的能力。
麻省理工公開課 - 化學原理課程節(jié)選
So, for example, for the chlorine case, we would say that the electron affinity for chlorine is actually positive 349 kilojoules per mole.
比如，以氯為例，我們可以說氯的電子親和能,應該等于正的，349，千焦每摩爾。
麻省理工公開課 - 化學原理課程節(jié)選
So do you think noble gases would have a high positive electron affinity, a low positive, or negative electron affinity?
那么，你認為稀有氣體的電子親和能,應該是一個高的正值，一個低的正值，還是一個負值？
麻省理工公開課 - 化學原理課程節(jié)選

a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is attached ( symbol: )

電子親合勢
However, it was difficult to determinate electron affinity by experimental methods.
從電子親合勢的研究發(fā)展歷史看來,用實驗方法測定電子親合勢是比較困難的,而且有些分子的電子親合勢用實驗的方法不能精確測得,或者由于分子的不穩(wěn)定性根本無法觀測。
電子親和力
電子親和能
電子親和力
電子親和勢