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...
the number of electrons in an atom我应该怎么回答?题目有给出些元素和他们的原子序数 相关知识点: 试题来源: 解析 对中性原子来说,电子数等于电子序数.对离子来说,原子序数等于电子数加电荷数(阳离子)或电子数减电荷数(阴离子). 分析总结。 对离子来说原子序数等于电子数加电荷数阳离子或电子数减电荷数阴离...
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.
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定...
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: ...
The atomic number (原子序数) is equal to the number of electrons per atom or, what is equivalent, the number of protons (质子) per nucleus.相关知识点: 阅读 文言文阅读 文言题类 文言文阅读——翻译 试题来源: 解析 [答案]原子序数等于每个原子的电子数或者相当于每个原子核的质子数。反馈...
百度试题 结果1 题目 The maximum number of electrons that an atom can have in a principal level n is to use the formula n2. 相关知识点: 试题来源: 解析 错误 反馈 收藏
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. ...
An atom s formal charge is the difference between the number of valence electrons in an isolated atom and the number of electrons assigned to that atom in a Lewis structure. 参考答案:对 点击查看答案&解析
aInaccurate 不精确 [translate] a4、 例如:Each atom normally has the same number of electrons, revolving about the nucleus as it has protons(质子). 4、例如:因为它有氢核质子,每个原子通常有电子的同一数量,旋转关于(中坚力量)。 [translate] ...