What changes when an ion is made from an atom? A. the number of electrons only B. the number of neutrons only C. the number of protons only D. the number both of protons and of neutrons 相关知识点: 试题来源: 解析 A 考查实际运用。A. 仅电子数量(变化),B. 仅中子数量(变化),C. ...
What is the maximum number of electrons in an atom that can have the following quantum numbers?(a) n = 2; (b) n = 3 and ,= 1; (c) n = 3,,= 1,and m,= 0; (d) n = 3, ,= 1,m,= −1,and ms = −1/2.
题目【题目】What is the mazimum number of electrons in an atomthat can have the following quantum numbers ?(a)n=2(b)n = 3 and ,= 1;(c) n = 3,= 1,and m,=0; (d) n=3,= 1,m,= -1,and ms = -1/2. 相关知识点: 试题来源: ...
化学问题~~ what is the number of electrons in an atom of scandium that have an l quantum number of 1? a.1 b.3 c.4 d.6 e.12 答案是选e 为什么e是正确的?有 公式计算吗? 答案 当然是12了,因为Sc的电子排布为1s2 2s2 2p6 3s2 3p6 4s2 3d1,角量子数为1的时候是p电子,Sc中p电子有...
How many protons are in the nucleus? What part of an atom has a negative charge and is found outside of the nucleus? What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons? An atom of an element has 10 protons. what is also true of that atom?
Atoms: Atoms are the purest form of matter. They consist of protons, neutrons, and electrons. The periodic table lists all of the different types of atoms that are known to exist and are known as elements. Answer and Explanation: An atom that has more protons than electrons is called a ...
百度试题 结果1 题目6 An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.What is Q? B A calcium B potassium C strontium D yttrium 相关知识点: 试题来源: 解析 B 反馈 收藏
The electrons in an atom are attracted to the protons in the nucleus by the electromagnetic force. Electrons can escape from their orbit, but only in response to an external source of energy being applied. The closer orbit of the electron to the nucleus, the greater the attractive force; hen...
What is the total number of valence-shell electrons around the central xenon atom in the molecule XeF2? Valence Electrons: Valence electrons are the electrons found in the outermost shell, in contrast to core electrons which are present in the inner shell. Beca...
Structure of the Nuclear Atom What is a Atom made of? Structure of the Nuclear Atom Cathode-ray tubes are found in TVs, computer monitors, and many other devices with electronic displays. Subatomic Particles Three kinds of subatomic particles are electrons, protons, and neutrons. ...