结果1 题目 An (原子) is the smallest amount of a substance that can take part in a chemical reaction. (根据汉语提示单词拼写) 相关知识点: 试题来源: 解析 atom 【详解】 考查名词。句意:原子是能参加化学反应的物质中最小的量。冠词an后接名词“原子”atom,故填atom。 反馈 收藏 ...
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...
The meaning of “atom” in physics is different from that in chemistry. In physics, an atom is considered as a fundamental particle, while in chemistry, an atom is the basic building block of matter. Which of the following words has a similar semantic change in different fields?
2No matter what substance it may be, it is ___ atom. A.resulted fromB.formedC.made up ofD.made up with 3 No matter what substance it may be, it is ___ atom. A.resulted from B.formed C.made up of D.made up with 4No matter what substance it may be, it is___ atom. ...
相关知识点: 试题来源: 解析 【解析】C【解析】试题分析:原句意思是,不管它是什么物质,它构成了原子。resultfrom意思是由……引起form形成,这里使用了被动语态,所以排除B,be made up of构成made up with与……和解。故选C,最符合题意。 反馈 收藏
Atomsare the foundation of matter, which is everything that makes up the universe around us. Each kind of atom makes up a pure substance called an element. You may have heard of oxygen, lead, and gold. Well, these are all examples of elements. Can you believe that a pure gold ...
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
Answer and Explanation: An atom that has more protons than electrons is called a cation. Ions are charged atoms or combinations of atoms. When an atom loses one or more... Learn more about this topic: Cation | Definition, Formation & Examples ...
What substance is made up of one type of atom only? How many atoms of cobalt equal a mass of 58.93 g? An atom has an atomic number of 12 and a mass number of 25. how many neutrons does the atom have? What is the mass of 1 mol of atoms for an element?
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