Atomic number is the number of protons in the nucleus of an element. It defines the position of the element in the periodic table. Atomic weight, which is a another number that appears next to the element's symbol, is an average of the atomic masses of all the isotopes of that element...
A. The number of protons B. The number of neutrons C. The number of electrons D. The sum of protons and neutrons 相关知识点: 试题来源: 解析 A。原子序数由质子数决定。选项 A 正确,原子序数等于质子数。选项 B 中子数不能决定原子序数。选项 C 电子数在原子呈电中性时等于质子数,但不是决定原...
结果一 题目 What is the atomic number of an element?ps:Please answered in English 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.相关推荐 1What is the atomic number of an element?ps:Please answered in English ...
百度试题 结果1 题目What is the atomic number of carbon? A. 6 B. 8 C. 12 D. 14 相关知识点: 试题来源: 解析 A。解析:碳的原子序数是6。选项B,8是氧的原子序数。选项C,12是碳的相对原子质量。选项D,14是硅的原子序数。反馈 收藏
百度试题 结果1 题目2.3. What is the atomic number of Fe? A. 26 B. 56 C. 28 D. 58 相关知识点: 试题来源: 解析 A 反馈 收藏
What chemical element has atomic number 35? Atomic Numbers: An element's atomic number directly correlates to the number of protons located in the nucleus of its atoms. In fact, the number of protons in the nucleus is the defining characteristic by which an atom is assigned its element. ...
A chlorine atom has 17 protons, 18 neutrons, and 17 electrons. What is the atomic number of chlorine? A) 8 B) 17 C) 35 D) 52 An atom with an atomic number of 10 and a mass number of 24 would have . A) 14 electrons B) 24 protons C) 14 neutrons D) 10 neutrons ...
What Is an Atomic Service: What Is an Atomic Service The number of devices per person keeps increasing in the Internet of Eve……
The number of protons in the nucleus of the atom is equal to the atomic number(Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. Was this an...
The chemical element with atomic number 15 is phosphorus. What is the abbreviation for phosphorus? A. P B. Ph C. Po D. Py 相关知识点: 试题来源: 解析 A。磷元素的英文是 phosphorus,其缩写形式是 P。选项 B“Ph”一般不是磷元素的缩写;选项 C“Po”是钋元素的缩写;选项 D“Py”不是磷元素...