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
1. What is the name for the horizontal rows of the periodic table? B A. groups B. periods C. families D. sets 相关知识点: 试题来源: 解析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....
What are elements in groups 3 through 12 on the periodic table called? What are the periodic trends on the table? What group is fermium in on the periodic table? What column is nobelium in on the periodic table? What do the elements in each column of the periodic table have in common?
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 rows of the periodic table are calledperiods, and the columns are known asgroups. Groups have similar physical and chemical properties. Thegroupan element belongs to corresponds to the number of electrons in its outer shell. Group 1 elements have 1 outer shell electron, group 2 has two ...
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...
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(...
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 ...
Associations are established among multiple dimensions to provide clues for analysis. A dimension includes hierarchies. Dimensions in the same dimension group can be drilled up and down. Dimensions can be independent from each other, or combined together to form a hierarchy from general to specific,...
Question: From the periodic table, what is the atomic number of aluminum? (a) 26.98 (b) 13 (c) 18 (d) 39.95 Elements: Elements are pure substances composed of only one type of atoms. They can exist in multiple isotopic forms which can vary in the number of neutron...