英文词汇:molecules,nucleus,protons,neutrons,electrons一定要加S么,为什么.还是一般情况?atom呢? 答案 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】相关推荐 1英文词汇:molecule...
\(\begin{array}{l}10^{-4}m\end{array} \) What are Atoms made of? An atom is composed of three particles, namely,neutrons, protons and electronswith hydrogen as an exception without neutrons. Every atom has a nucleus that bounds one or more electrons around it. ...
theory). We'll start this calculation by reducing the complexity of our problem from two particles in motion around each other, to just one particle, the electron, in motion about an infinitely massive nucleus (the proton in this case, or the proton with one or two or three neutrons). Ju...
1. the smallest component of an element having the chemical properties of the element, consisting of a positively charged nucleus of neutrons and protons that exerts an electrical attraction on one or more electrons in motion around it. 2. this component as the source of nuclear energy. 3....
百度试题 结果1 题目The nucleus of an atom is _ of swiftly moving protons(质子)and neutrons(中子)that are bound together by very strong forces. A. consisted B. contained C. composed D. compressed相关知识点: 试题来源: 解析 C 反馈 收藏 ...
The number of neutrons in a nucleus affects the mass of the atom but not its chemical properties. Thus, a nucleus with six protons and six neutrons will have the same chemical properties as a nucleus with six protons and eight neutrons, although the two masses will be different. Nuclei with...
Atoms are composed of a nucleus (containing protons and neutrons) and electrons that surround the nucleus. Whereas protons have a +1 charge, electrons have a -1 charge. For all atoms, the atomic number is the number of protons while the arrangement of electrons gives the electronic structure ...
Atoms are extremely small and cannot be seen with the naked eye. 💡Atoms have three parts: protons and neutrons, which are found in the nucleus at the center of the atom, and electrons, which orbit around the nucleus, similar to planets orbiting the sun. The arrangement of electrons ...
Learn about the parts of an atom and its overview and structure. Discover the neutrons, protons, and electrons that compose an atom, along with...