#英语启蒙动画 #每日英语学习 #每天进步一点点 What Is An Atom 什么是原子 - 林阅绘本馆于20220510发布在抖音,已经收获了591个喜欢,来抖音,记录美好生活!
A. Atom B. Molecule C. Cell D. Organ 相关知识点: 试题来源: 解析 A。解析:原子(Atom)是物质的最小单位。分子(Molecule)由原子组成;细胞(Cell)是生物体的基本结构和功能单位;器官(Organ)是由细胞和组织构成的。从语法上这是关于物质基本单位的特殊疑问句,选项为不同物质或生物结构名称。反馈...
百度试题 结果1 题目write down___ an atom is likeA howB whoC whatD which 相关知识点: 试题来源: 解析 答案为C 反馈 收藏
Or, if describing more than one atom, one would say that thenuclei(plural) of the atoms are positively charged. The nucleus is tiny compared with the total volume of the atom. That is, it occupies a very smallspacecompared with the volume around it,BUTthe nucleus accounts formost of the...
What is the diameter of a hydrogen atom? Which atom is largest? What is the smallest part of the atom that has almost no weight? Which two subatomic particles have the same mass? What is an atom that has a different number of neutrons than other atoms of the same el...
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 (ii) What is the term for the total number of particles in the nucleus of an atom?nucleon number[1] 相关知识点: 试题来源: 解析 nucleon number 反馈 收藏
What is the maximum number of electrons in an atom that can have the following quantum numbers?(a) n = 2; (b) n = 3 and ,= 1; (c) n = 3,,= 1,and m,= 0; (d) n = 3, ,= 1,m,= −1,and ms = −1/2.
Lockyer's early research was controversial only in the sense that it was pioneering work in a new area of science. His ideas might be queried, but his investigations were based on a set of fundamental concepts shared by his fellow scientists. During the seventies, however, he began to ...
The fundamental building block of matter, an atom is made up of an electron cloud surrounding a nucleus made up of protons and neutrons. Neutrons are...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...