Question

electron n.电子 (1) 现在我们再回到电子波上来。(2) 电子从原子的某一壳层中被弹射出来。 The number of protons and electrons is equal in each atom. The hydrogen atom, for example, has just one electron and one proton. The uranium atom, on the other hand, has 92 protons, and therefore, 92 electrons. The atom's atomic number is the number of protons in the atom, which by default is also the number of electrons. An electron is so small that it cannot be seen with the naked eye, but neither can the atom itself.

Accepted Answer

英 [ɪ'lektrɒn] 美 [ɪ'lektrɑːn] (1) Let us return to electron waves now.(2) An electron from one of the atom shells is ejected. If you take chemistry, you will learn about electrons. Electrons are the smallest of the particles that make up an atom, and they carry a negative charge. 1[N-COUNT 可数名词]电子 An electron is a tiny particle of matter that is smaller than an atom and has a negative electrical charge.   [TECHNICAL 术语]

英语单词	electron
英美音标	英 [ɪ'lektrɒn] 美 [ɪ'lektrɑːn]
中文释义	n.电子
英语例句	(1) Let us return to electron waves now. (2) An electron from one of the atom shells is ejected.
中文例句	(1) 现在我们再回到电子波上来。 (2) 电子从原子的某一壳层中被弹射出来。
vocabulary简明	If you take chemistry, you will learn about electrons. Electrons are the smallest of the particles that make up an atom, and they carry a negative charge.
vocabulary扩展	The number of protons and electrons is equal in each atom. The hydrogen atom, for example, has just one electron and one proton. The uranium atom, on the other hand, has 92 protons, and therefore, 92 electrons. The atom's atomic number is the number of protons in the atom, which by default is also the number of electrons. An electron is so small that it cannot be seen with the naked eye, but neither can the atom itself.
柯林斯解释	1 [N-COUNT 可数名词]电子 An electron is a tiny particle of matter that is smaller than an atom and has a negative electrical charge. [TECHNICAL 术语]

Electron Atom Number Negative Charge Protons 英 ɪ'Lektrɒn] 美