The different rows of elements are called periods. The period number of an element signifies the highest energy level an electron in that element occupies (in the unexcited state). The number of elements in a period increases as one traverses down the periodic table because as the energy level...
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
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...
The columns of the periodic table are called groups. All elements in a group share the same number of valence electrons. The three broad categories of elements are metals, nonmetals, and metalloids. Most elements are metals. Nonmetals are located on the righthand side of the periodic table. ...
The above question can be answered by having a thorough study of the periodic table and understanding how and why the elements are placed at certain specific positions. The periodic table is orderly arrangement of elements in various periods and groups on the basis of their atomic number, r...
C.What Would Happen If Every Element On The Periodic Table Came Into ContactSimultaneously?There are two ways to go about testing this, neither of which are practical. One requires the energyof dozens of Large Hadron Colliders(强子对撞机). The other could produce a large pot of flamingplutoni...
解析 Ans. The d block elements are in the middle of S and p blocks, comprising the groups 3to 12.They are the four rows of elements in the periods 4h (3d series), 5th (4d series), 6th ( 5d series)and 7h ( 6d series).
Periodic tableMadelung ruleThis article considers two important traditions concerning the chemical elements. The first is the meaning of the term "element" including the distinctions between element as basic substance, as simple substance and as combined simple substance. In addition to briefly tracing ...
What is Na on the periodic table? What is tin on the periodic table? What is between metals and nonmetals on the periodic table? What are elements in groups 3 through 12 on the periodic table called? What do the elements in each column of the periodic table have in common? What are ...
The Rare Earth Elements Similar questions Q.The columns of the periodic table are called groups. 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 ...