What changes when an ion is made from an atom? A. the number of electrons only B. the number of neutrons only C. the number of protons only D. the number both of protons and of neutrons 相关知识点: 试题来源: 解析 A 考查实际运用。A. 仅电子数量(变化),B. 仅中子数量(变化),C. ...
Chemistry问题1:An element is a substance that is made up of only one kind of atoms.One kind是指同一个的atom,还是Metal或者non-metal两大类中的一类?2:an element=an atom?有什麼分别?最好举个例子. 相关知识点: 试题来源: 解析 1.化学元素是根据原子核电荷的多少对原子进行分类的一种方法,把核...
An atom is made up of ___. A. protons, neutrons and electrons B. protons and neutrons only C. neutrons and electrons only D. protons and E. lectrons only 相关知识点: 试题来源: 解析 A。原子由质子、中子和电子组成。选项 B、C、D 都不完整。反馈...
百度试题 结果1 题目An atom___three kinds of particles. A. makes up B. is made of C. is consisted of D. is composed of 相关知识点: 试题来源: 解析 D 反馈 收藏
All matter is composed of an atom.It is the basic unit in which elements are made? 答案 这句话的意思是“所有的物质是由原子组成的.它是组成元素的最小单位?”如果是"是非题"的话那是对的.相关推荐 1All matter is composed of an atom.It is the basic unit in which elements are made?反馈...
百度试题 结果1 题目Any substance is made up of atom. Whether it is solid, l or gas.相关知识点: 试题来源: 解析 Life is like an ocean. Only the strong-willed can reach the other s .反馈 收藏
百度试题 结果1 题目The water molecule is made of two hydrogen atoms and one o___ atom.相关知识点: 试题来源: 解析 oxygen 反馈 收藏
【题目】翻译一下可以吗1.An atom is made up of positive charges (protons),neutral charges (neutrons)and negative charges (electrons).T he protons and neutrons are found within the nucleus ofan atom,while we learnt in P08 Curious glowthat the electrons are found in different energy levels ...
19-4ElementsThe entire universe is made of matter. And matter ismade of either individual elements or compounds.Compounds are combinations of two or moreelements What is an element? It is matter made ofonly one type of atom. There are 118 elements Mostare natura. So they appear in nature....
cause im the one that cause inside cause it fills me up cause its gettin me h cause loves such an o cause loving you is a cause major accidents cause no one can deny cause of you made it cause or produce sth cause shes bitterswee cause someone makes m cause temperate chang cause that...