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
When specifying the location of valence electrons, however, just identifying the orbitals for the valence electrons suffices. We do that by writing the snippet of the valence electrons.Answer and Explanation: Indium (In) is element 49 and is a group 3 elemen...
What neutral element has the following electron configuration? Ar 4s23d104p4 What is the ground state of an element? A. It is the arrangement of electrons that occurs after one or more electrons becomes excited....
What is the maximum number of electrons that could have l=1 and ms=−1/2 in the ground state electron configuration of the neutral element sulfur, S? Azimuthal Quantum Number: The azimuthal quantum number is also calle...
Chapter 25/ Lesson 3 124K Discover the arithmetic sequence definition and how math uses it. Know its formula and how to solve problems relating to it through sample calculations. Explore our homework questions and answers library Search Browse ...
Silicon has total 14 electrons in its isolated atom. The first orbit consists of 2 electrons. The second orbit consists of 8 electrons and the third orbit consists of 4 electrons. As there are four electrons in the outer most orbit of a silicon atom, the silicon is a tetravalent element....
Valence electrons are those electrons that reside in the outermost shell surrounding an atomic nucleus. Valence electrons are of crucial importance because they lend deep insight into an element’s chemical properties: whether it is electronegative or el
aDirect Exchange of Electrons Within Aggregates of an Evolved Syntrophic Coculture of Anaerobic Bacteria 电子直接交换在演变的Syntrophic之内厌气细菌Coculture的聚集体[translate] a儿子快过年了,你好吗 The son has celebrated the new year quickly, how are you[translate] ...
Number of electrons D. Number of quarks What are isotopes? How do isotopes of an element differ? If an element has atomic #32 how many electrons does it have? What is the chemical composition of Kovac's reagent? An unknown element is found to contain 45 protons and an atomic mass of ...
Relative to tantalum, which finds its primary use in the electronics industry, niobium is estimated to be some 20 times more abundant in nature, and is also used widely as an alloying element in steel production in quantities much larger than would conceivably be required for electronics purposes...