常見例句雙語(yǔ)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(fù)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(duì)這個(gè)問(wèn)題,你衹需要好好想一想,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(shí)就是一個(gè)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(shí)就是一個(gè)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,以氯爲(wèi)例,我們可以說(shuō)氯的電子親和能,應(yīng)該等於正的,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?那麼,你認(rèn)爲(wèi)稀有氣躰的電子親和能,應(yīng)該是一個(gè)高的正值,一個(gè)低的正值,還是一個(gè)負(fù)值?麻省理工公開課 - 化學(xué)原理課程節(jié)選 返回 electron affinity