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解析 就是单数复数啦... 比如说proton就是一个质子,protons就是多个质子……氢就是one proton…… 在这几个词中,nucleus比较特殊.nucleus是单数,nuclei是复数【参见半径单数=radius复数=radii】 分析总结。 比如说proton就是一个质子protons就是多个质子
答案解析 查看更多优质解析 解答一 举报 就是单数复数啦...比如说proton就是一个质子,protons就是多个质子……氢就是one proton……在这几个词中,nucleus比较特殊.nucleus是单数,nuclei是复数【参见半径单数=radius复数=radii】 解析看不懂?免费查看同类题视频解析查看解答 更多答案(1) ...
Book Reviews: Electrons (+ and -), Protons, Photons, Neutrons, Mesotrons, and Cosmic Rays Millikan, Robert A. Electrons (+ and ): Protons, Photons, Neutrons, Mesotrons, and Cosmic Rays. Chicago: The University of Chicago Press, 1947. 642 p. $6.00No abstract is available for this arti...
Protons carry a positive electrical change, while electrons are negatively charged, and neutrons are neutral. A neutral atom has the same number of protons and electrons (charges cancel each other out). An ion has an unequal number of protons and electrons. If the charge is positive, there ...
ACKNOWLEDGEMENTS - Electrons, Neutrons and Protons in Engineeringdoi:DOI: 10.1016/B978-0-08-010994-7.50018-1Eaton, J. RELSEVIER《Electrons Neutrons & Protons in Engineering》Eaton, J. R., Electrons, Neutrons and Protons in Engineering, Pergamon Press, pp. 125-176 and 198-348, 1996....
百度试题 结果1 题目What are the numbers of protons,electrons,and neutrons in239Pu?相关知识点: 试题来源: 解析 Protons:94, from the periodic table. Electrons : 94, since the atom is uncharged. Neutrons:239-94=145 反馈 收藏
ElectronsMillikan, Robert Andrewsdoi:10.1038/136320a0Robert Andrews MillikanQuarterly Review of BiologyMillikan, R. A. (1947), Electrons (+ and -), Protons, Photons, Neutrons, Mesotrons, and Cosmic Rays, rev. ed., Chicago: The University of Chicago Press....
2 (a)The table below gives the number of protons, neutrons and electrons in atoms or ions.Complete the table. The first line is given as an example.You will need to use the Periodic Table.number of particle number of number of symbol or protons ele ctrons neutrons formula A445Be B19182...
How many protons, neutrons, and electrons are there in a neutral atom of 240Am (americium-240)? The atomic number of an atom of an element is 17 while its mass number is 35. How many neutrons does the atom have? How many protons, neutrons, and ele...