A. the number of protons in an atom B. the number of neutrons in an atom C. the number of electrons in an atom D. the total number of particles in an atom 相关知识点: 试题来源: 解析 A。元素的原子序数告诉我们一个原子中的质子数。原子序数等于质子数,选项 B 中子数不能由原子序数确...
For an atom with atomic number ZBrown, By P JFox, A GMaslen, E NKeefe, M A OWillis, B T MMaslen, By E NFox, Ê ÀKeefe, O
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 an atom is:A.the number of electronsB.the number of neutronsC.the number of protonsD.the number of protons plus the number of neutrons的答案解析,刷刷题为用户提供
6 (a) An element X has an atomic number of 24 and a relative atomic mass of52.06. The natural element consists of four isotopes. The mass spectrum of the element X produced the following peaks of three of the isotopes on the chart recorder.Percentage83.804.302.4050 51 52 53 54 55 56...
Describe the structure of an atom.An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons determines
Determine whether or not each of the following atoms is stable. If the atom is not stable, how many more electrons are needed to fill the outer electron shell? Neon (Atomic Number = 10) Argon (Atomic Number = 18) Carbon (Atomic Number = 6) Nitrogen (Atomic Number = 7) Oxygen (...
An atom has an infinite number of electron configurations, including not just the ground state but excited states as well. Identify the element and write the ground-state electron configuration for that atom. c) 1s^22s^22p^63s^23p^63d^1 ...
Question: An atom whose atomic number is 7 has how many electrons in its outermost energy level?FiveSevenTwoThree There are 2 steps to solve this one.
If the atomic mass number is composed of neutron and protons then surely the amu of an atom should be a whole number as neutrons and protons both have a mass of +1. For example, should not sodium have an amu of 23? Why does chlorine have an amu of 35.45?
Atomic Structure refers to the fundamental components of matter, namely atoms, which consist of a nucleus and orbiting electrons. The nucleus, acting as the center of an atom, is positively charged and has a much greater mass than the negatively charged electrons. Atoms are electrically neutral ...