What is the main component of the atomic mass in English? A. Protons B. Electrons C. Neutrons D. Protons and neutrons 相关知识点: 试题来源: 解析 D。本题考查原子质量的主要组成部分。质子和中子的质量较大,是原子质量的主要构成部分,电子质量很小可忽略。选项 A 仅提到质子,不全面。选项 B 电子...
翻译：碳的原子质量是什么？
Each12C atom has six protons and six neutrons in its nucleus, adding up to an atomic mass of 12 AMU.Electronshave a low mass, so they are assumed to have a negligible effect. Consequently, the nucleus accounts for almost the entire mass of the atom of any element, which means that a ...
The atomic mass is the mass of an atom. Although the SI unit of mass is the kilogram, the atomic mass is often expressed in the non SI-unit dalton, where one dalton is defined 1/12 of the mass of a single carbon-12 atom, at rest. The protons an...
The sample of hydrogen has a mass of 1.01g,how many hydrogenatoms make up 1.01g? 3英语翻译What is the mass of one carbon atom in atomic mass unit(amu)What is the mass of one carbon atom in grams(g)What is the mass of one oxygen atom in amu?What is the mass of one oxygen atom...
The two subatomic particles that make up the mass of an atom are protons and neutrons. Each of these has a mass of one AMU, or atomic mass unit... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our expe...
The mass of any substance is the amount of matter present in it. By matter, it can be atoms, ions, or molecules. Every substance is made up of matter and hence possesses a mass. In the case of atoms, it has protons...
Atomic Number for any two different atoms is never same and hence can be used to distinguish two different atoms. Mass Number It is the sum of neutrons and protons of an atom present in nucleus. Mass Number for two different atoms can be same. The Atomic Mass of an atom is approximately...
An element's atomic mass is equal to the sum of the individual particle masses of an atom. Atoms have three basic particles which include protons, neutrons, and electrons. The standard unit for measuring atomic mass is the Dalton (u). ...
Answer to: What is the average atomic mass of oxygen? By signing up, you'll get thousands of step-by-step solutions to your homework questions. You...