An atom has a mass number of 24 and 13 neutrons. what is the atomic number of this atom? An atom has a mass number of 25 and 13 neutrons. what is the atomic number of this atom? An atom has an atomic number of 12 and a mass number of 25. how many neutrons does ...
An unknown nucleus has twice the volume of a nucleus with 85 nucleons. What is the atomic mass number of the unknown nucleus? Atomic mass number: Atomic number is the number of protons inside the nucleus of element. On the other hand...
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...
AZX is having atomic mass as well as its mass number as A. Staements II: Mass number of an element is an integer that specifies an isotopes and has no units, while atomic mass is generally not an integer. View Solution Knowledge Check Which symbol replaces the unit of atomic mass, ...
Hence, 1 mole of Sodium weighs 23 grams.We know,Since the atomic mass of Sodium is 23, we can also write it as 23 g/mol.Therefore, we conclude that Option B is the correct answer.Additional Information:The atomic number of a chemical element is the n...
To find the relationship between the mass number (A), atomic number (Z), and the number of neutrons (N), we can follow these steps:1. Understanding Definitions: - The mass number (A) is the total number of p
5 The weighted average of the atomic masses of the naturally occuring isotopes of an element is the(1) atomic mass of the element (1)(2) atomic number of the element(3) mass number of each isotope(4) formula mass of each isotope 相关知识点: 试题来源: 解析 (1) 反馈 收藏 ...
If the number of electrons in an atom varies, the element remains the same, but newionsare produced. If the number of neutrons changes, newisotopesresult. Protons are found together with neutrons in the atomic nucleus. The total number of protons and neutrons in an atom is itsatomic mass ...
The atomic mass is the mass of the atom. It is composed of protons and neutrons. The unit is expressed in dalton. The atomic mass can be found on the periodic table. It is usually the number on the top left on the element symbol. ...
From the atomic mass (mass number), one can deduce the number of ___ in each atom of an element. Atomic Properties: Atoms are the building blocks of matter, all matter is made from a collection of atoms. Atoms are composed of a nucleus made up of positivel...