结果1 题目What are the horizontal rows in the periodic table called? A. Groups. B. Periods. C. Elements. D. Compounds. 相关知识点: 试题来源: 解析 B。中文解析:“The periods are horizontal rows”,周期表中的水平行称为周期。反馈 收藏 ...
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 _...
What element is in period 4 and group 11 (1B) in the periodic table? What element is in period 4 and group 14 (4A) in the periodic table? What element is in period 5 and group 16 (6A) in the periodic table? Explain the difference between the groups and the periods ...
Delectronegativity decreases on moving down a group Submit Delectronegativity decreases on moving down a group Submit DElectronegativity decreases on moving down a group Submit The elements of same group of the periodic table have View Solution ...
百度试题 结果1 题目What is a row of elements on the periodic table called? A. octave B. period C. group D. transition 相关知识点: 试题来源: 解析 B 反馈 收藏
Periods and Groups in the Periodic Table The arrangement of the periodic table organizes elements with related properties. Two general categories aregroups and periods: Element Groups Groups are the columns of the table. Atoms of elements within a group have the same number of valence electrons. ...
A. All elements are solids. B. Elements in different periods have no similarities. C. The periodic table helps us understand the relationships between elements. D. The periodic table only shows the names of E. lements. 相关知识点: 试题...
Learn about the organization of the periodic table into groups and periods and how these differ. Also learn the history of the periodic table and its properties. Related to this Question Explore our homework questions and answers library
What is meant by a group in the periodic table? 01:47 Within a group where would you expect to find the element with (A) ... 02:49 State whether the ionization potential decreases on going down a group... 02:55 How many elements are there in period 2? 01:01 Rewrite the following...
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