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黃俊玄新蟲 (小有名氣)
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[交流]
為什么Mg會導(dǎo)電求大神解釋 已有15人參與
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Mg的電子結(jié)構(gòu)不應(yīng)該導(dǎo)電,但卻導(dǎo)電,為什么 發(fā)自小木蟲Android客戶端 |
鐵桿木蟲 (小有名氣)
高工級教授

木蟲 (正式寫手)
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In metals such as Mg, energy bands overlap and both 3s and 3p bands contain electrons. Overlap of bands is responsible for the metallic properties of Mg. If the 3s and 3p bands did not overlap, then the 3s band would be full, the 3p band empty and Mg would not be metallic. This is the situation that holds in insulators and semiconductors. From A.R. West, Solid State Chemistry and Its Applications, WILEY,2014 |
新蟲 (初入文壇)
新蟲 (小有名氣)
銀蟲 (初入文壇)
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鎂的價帶和導(dǎo)帶有一定的重合, 合并成一個帶, 沒有禁帶. 所以雖然導(dǎo)帶是滿的, 費米面上面,在同一帶中, 有空的能級. 所以鎂導(dǎo)電 發(fā)自小木蟲IOS客戶端 |

木蟲 (正式寫手)
水牛生態(tài)學(xué)家

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