百度试题 结果1 题目The atomic number of an element represents the number of ___. A. protons B. neutrons C. electrons D. protons and neutrons 相关知识点: 试题来源: 解析 A。元素的原子序数代表质子数(protons)。
百度试题 结果1 题目What is the atomic number of an element?ps:Please answered in English 相关知识点: 试题来源: 解析 最佳答案译文,什么是元素的原子序数?It is the number of an element in thePeriodic table of the elements.
What is the atomic number of the element fluorine? Atomic Number: The atomic number refers to how many protons the atoms of an element contains. Protons are located in the nucleus of atoms, have a positive charge and a mass of 1 amu. Answer and Explanation: 1 Become a Study.com member...
How does the element definition relate to the atomic number? Solution Step 1 Solution:− Theatomicnumberofanelement, represented by the symbol(Z), is fundamental to the definition and identity of the element. View the full answer
刷刷题APP(shuashuati.com)是专业的大学生刷题搜题拍题答疑工具,刷刷题提供The atomic number of a chemical element is counted by the number of ( ) that the atom contains .A.electronsorprotonsB.electronsplusprotonsC.nucleusD.neutrons的答案解析,刷刷题为用户提
The main difference between isotopes of an element is in their: A. Atomic number B. Mass number C. Electron configuration D. Chemical properties 相关知识点: 试题来源: 解析 B。同位素之间的主要区别在于质量数。原子序数决定元素种类,同位素的原子序数相同,所以 A 选项错误。电子构型在同位素中基本相同,...
The element with the atomic number 1 is ___. A. hydrogen B. helium C. lithium D. beryllium 相关知识点: 试题来源: 解析 A。原子序数为 1 的元素是氢,选项 B 氦的原子序数不是 1,选项 C 锂的原子序数不是 1,选项 D 铍的原子序数不是 1,所以选 A。
百度试题 结果1 题目The element with atomic number 1 is ___. A. hydrogen B. oxygen C. nitrogen D. carbon 相关知识点: 试题来源: 解析 A。原子序数为 1 的元素是氢(hydrogen)。
1The atomic number of an element X is 15.The number of electrons in an anion of X is?答案是D,但是eleltrons不是等同atomic number吗?A 10B 12C 15D 18 2The atomic number of an element X is 15.The number of electrons in an anion of X is?但是eleltrons不是等同atomic number吗?A 10B...
The atomic mass of the element is determined by the combined masses of neutrons and protons. True or false? Explain. Answer and Explanation: The atomic mass or atomic weight of an element (or put it in simple term, mass of an atom) is found ...