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
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 ...
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
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...
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
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...
Periodic table is the arrangement of all the known chemical elements by their atomic number and electronic configurations. There are seven periods and sixteen groups present in a periodic table. Elements with similar properties are found in the same group of the periodic table....
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 _...
The Periodic Table is a table of all the elements we know about today. Elements are placed in order of atomic number ( number of protons in the nucleus ).
The periodic table host all the known elements: It was first set by Mendeleiev TThe first element is hydrogen, and the following elements increase their atomic number to the right, The periodic table is arranged in such a way t...