NA(a) What is a group in the periodic table in which part of a group would you separately expect elements to have (i) the greatest metallic character (ii) the largest atomic size? (b) In what respects do the properties of group 1 elements differ from
The elements of same group of the periodic table have View Solution What happens to number of valence electrons in atoms of elements as we go down a group of the periodic table ? View Solution Exams IIT JEE NEET UP Board Bihar Board ...
A. Groups B. Periods C. Elements D. Properties 相关知识点: 试题来源: 解析 B。原因:文章中明确提到“The horizontal rows or periods show how the properties of elements change as you move across.”,即水平行被称为 periods。反馈 收藏
B1. B: The horizontal rows of the periodic table are called periods. The vertical columns of the periodic table are known as groups or families. Developed by Dmitri Mendeleev to organize the known elements according to their similarities, all of the periodic table elements in a group have ...
Which group in the periodic table contains elements with the valence electron configuration of ns^2np^1? Please explain!! What is the name of the Group of the Periodic Table in which all the elements have a valence shell electron configuration ns^2np^0? What is the valence electr...
What is the group number in the periodic table of X, a representative element, in each of the following ionic compounds. 1. X2O3 2. X2SO3 3. Na3X Representative elements: Representative elements involve the filling of s an...
Q.What is meant by groups and periods in the periodic table? Q.What are groups of the modern periodic table .What does the 'group number' signify Q. In the modified Mendeleev’s periodic table,___ groups and ___ periods are present, whereas in modern periodic table,___ groups and _...
百度试题 结果1 题目25 Selenium, Se, is in the same group of the Periodic Table as sulfur, S What is the formula of sodium selenide? A ANa2Se BNaSeO C Na2SeO D Na SeO: 相关知识点: 试题来源: 解析 A 反馈 收藏
百科挑战题1) What is the letter forprop in the periodic table of chemical elements(化学素周期)? A.Fe B.Zn C.Ha2) What is the best way to look up information on the interne? A. By using e-mail B. By using QQ B33) What is the material of pengl leag()? A.lime B. graphite(...
Element Group Although an element group often is defined as a column of the periodic table, it's common to refer to groups of elements that span multiple columns, excluding some elements. An example of an element group is the semimetals ormetalloids, which follow a zig-zag path down the pe...