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electron
One of the constituent elementary particles of an atom. A charge of negative electricity equal to about 1.602 X 10-19C and having a mass when at rest of about 9.107 X 10-28g or 1/1,837 that of a proton. Electrons surround the positively charged nucleus of the atom and determine the chemical properties of the atom.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)