atom系一种element入面最细而且不能分割的部份,而Ion是由于atom/molecule得到或者失去electron时而令atom/molecule中的正负电荷失衡,得到净正或负电荷,咁ion都系element入面最细而且不能分割的部份?polyatomic ion系多过一个 atom 的 ion,咁他算不算系compound?
If 3 is an element of A and 3 is not an element of B, then which of the following is NOT true? a. 3 is an element of B complement b. 3 is an element of A union B c. 3 is an element of A intersect B If the set S has n elements then prove that A(S) has n...
Isotopes are atoms of the same element with ___ . Different atomic numbers Different atomic masses Different number of protons All of the above Atom Structure And Isotopes: Quiz! Atom Structure and Isotopes: Quiz! Explore the fundamentals of atomic structure and isotopes with this engaging quiz...
molecule - (physics and chemistry) the simplest structural unit of an element or compound free radical, radical - an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an ...
15. Relating to the replacement of one of several atoms or radicals in a compound by another atom or radical. 原子序,原子构造限定在如链条上的连结环的空间构型里的一组原子 16. The most stable adsorption site for both oxygen and iodine atom on the silver surface is four-fold hollow site. ...
youtubeWhat Is An Atom IB化学公开课 原子, 视频播放量 141、弹幕量 0、点赞数 2、投硬币枚数 0、收藏人数 0、转发人数 2, 视频作者 Chembond化学社, 作者简介 清华大学博士,相关视频:高中IB化学公开课 化学结构系列 What Is An Element, Mixture And Compound_ 单质 化
4Diagrams X, Y and Z represent three different substances.atom of element P atom of element Q XY ZWhich row in the table correctly describes X, Y and Z? D XY Zcompound element mixture Bcompound mixture element Smixture element compound mixture compound element 相关知识点: 试题来源: 解...
All atoms of any element are the same—all the paper clips in the pile are the same size and color. Atoms of different elements are different in size and properties—like different sizes and colors of paper clips. Atoms of different elements can combine to form. compounds—you can link ...
If we divide the molecular weight of a compound into the atomic weight of the atoms of any element in its molecule, it will give the proportion of the element in the compound. Taking water again, if we divide its molecular weight, 18, into the weight of the atoms of hydrogen m its ...
(chemistry) The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds. Hydrogen chloride is a diatomic molecule, consisting of a hydrogen atom and a chlorine atom. Atom The smallest...