The atomic number refers to the number of protons within the nucleus of the element's atom. The atomic mass refers to the number of protons and neutrons.Answer and Explanation: Cobalt, a transition metal, has an atomic number of 27. It has an atomic mass of 58.9332, so a cobalt atom w...
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 ...
1 The relative atomic mass of an element is always D A the mass of an atom of the element relative to z the mass of a carbon-12 atom. B the mass of an atom of the element relative to the mass of a hydrogen atom.□ C the weighted mean mass of an atom of the element relative ...
15 The relative atomic mass of an element is determined using a mass spectrometer.(a)Define the term relative atomic mass.(2)Average/mean mass of an atom/ isotopes (1/ 12mass of an atom of) carbon-12(b)The mass spectrum of rubidium is shown below.8070一60-50-Relative40abundance30-20...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
The atomic mass or atomic weight of an element (or put it in simple term, mass of an atom) is found by addingnumber of neutronsand number of protons. In calculating the atomic mass of an atom, the number of electrons and daltons are usually i...
atomic weight,relative atomic mass mass- the property of a body that causes it to have weight in a gravitational field combining weight,eq,equivalent weight,equivalent- the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8...
The mass number of argon is 40.How many protons, neutrons and electrons are there in an argon atom? ( ) 相关知识点: 试题来源: 解析 一个氩原子有 18 个质子、22 个中子和 18 个电子。 1. 原子序数: 氩的原子序数为 18,这意味着它的原子核中有 18 个质子。 2. 质量数: 氩的质量数为 40...
© 1992 Springer-Verlag Berlin Heidelberg About this chapter Cite this chapter Ghosh, M.K. (1992). Atomic Mass of the Elements. In: HPLC Methods on Drug Analysis. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76506-3_4 ...
3 CHEMISTRY-RELATIVE ATOMIC MASS the mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atom, so its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24 再给另一个例子 不要用英文...