電子質量
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This article "電子質量" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:電子質量. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one. 電子質量是指一個靜止電子的質量，通常以表示之，約為9.109×10−31公斤，如果以質能轉換來算的話，則相當於8.187×10−14焦耳的能量。
電子的質量大約為9.109 × 10−31kg或5.489 × 10−4amu[1]。根據阿爾伯特·愛因斯坦的質能等價原理，這質量等價於0.511 MeV靜止能量。質子質量大約為電子質量的1836倍。[2]天文測量顯示出，至少在最近這半個宇宙年齡期間，這質量比例都保持穩定不變，與標準模型所預測的相符合。[3]
Template:物理小作品 This article "電子質量" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:電子質量. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.
