常見例句雙語例句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。原聲例句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(xué)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(yīng)該等于正的，349，千焦每摩爾。麻省理工公開課 - 化學(xué)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(yīng)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(xué)原理課程節(jié)選 返回 electron affinity