The element classification is determined by the number of protons and will be the same number for every isotope of the element. However, the number of neutrons changes from isotope to isotope. The mass number, often listed after the name of the element to identify the isotope, is a total c...
Mass number is a count of the total number of protons and neutrons found in the nucleus of an atom. This number will change with each isotope of an element as the number of neutrons will change but the number of protons remains the same. This differs from the atomic mass located on the...
The mass number of an atom is the total number of protons and neutrons contained within the nucleus of the atom. The number of protons determines the element and will always equal the atomic number of that element. The number of neutrons can change and will determine which isotope of that...
Mass is a measure of the amount of matter in an object. What is the SI unit of mass? A. gram B. kilogram C. pound D. ounce 相关知识点: 试题来源: 解析 B。A 选项 gram 克,不是国际单位制中的基本单位;C 选项 pound 磅和 D 选项 ounce 盎司都是英制单位;B 选项 kilogram 千克是国际...
【题目 】感激不敬1. a. What is the marimum mass of KCI that can be dissolred in each 100g of
a我和他都不满意这部作品 I and his all unsatisfied this work[translate] aaddressees destinatari[translate] a阿静 Arab League static[translate] aB 、telephone B、电话[translate] a我想那一定 I thought[translate] aWhat is the mass of # 什么是大量#[translate]...
What is the mass number of an ion with 104 electrons, 159 neutrons, and a +1 charge?Ion:Ions are particles that are formed from atoms when an atom loses or gains electrons. We can classify ions based on the sign of their overall charge. A cation bears a positiv...
What is the mass number of an isotope?Isotope:Isotopes are atoms of the same element that have a different number of neutrons. Neutrons are subatomic particles that make up the nucleus with protons. Protons never change between atoms of the same element and are the defining feature that makes...
The sample of hydrogen has a mass of 1.01g,how many hydrogenatoms make up 1.01g? 2请翻译下面的英语化学题目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 ...
1)what is the mass of each cube?2)two more than a number is -123)the sum of 1/4 and a number and is four.4)one eighth of a number is 28.5 more than 76.请帮忙翻译一下,谢谢. 相关知识点: 试题来源: 解析 )what is the mass of each cube?一个立方体的容积?2)two more than a ...