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 periodic table. Element groups, defined this way, do not always have the same number of valenc...
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
What is the element AR classified as in the periodic table? How can the column or group of the periodic table to which a given element belongs be determined? How was the first periodic table arranged? What is Se on the periodic table?
What is a group and period in the periodic table? Which group in the periodic table contains only nonmetals? What group does actinium belong to on the periodic table? What is the element AR classified as in the periodic table? What does each different element on the periodic t...
A. colors of the elements. B. sizes of the elements. C. atomic weights and chemical properties. D. melting points of the E. lements. 相关知识点: 试题来源: 解析 C。原因:文中提到“Mendeleev arranged the elements according to their atomic weights and chemical properties.”。 反馈...
A. the color of elements. B. the size of elements. C. the atomic number of elements. D. the reactivity of E. lements. 相关知识点: 试题来源: 解析 C。元素周期表是按照元素的原子序数排列的。选项 A 颜色不是排列依据;选项 B 大小不是主要依据;选项 D 反应性不是排列的基础。反馈...
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combination will help you test your knowledge on how the periodic table is organized. The practice questions on the quiz will test you on the characteristics of the periods on the table, the characteristics of the groups on the table, and the properties that place elements in a given ...
aCertain groupings of elements in the periodic table are designated by special names. The heavy, stepped, diagonal line on the table divides the elements into two major classed. Those to the left of the line are called metals, and those to the right, nonmetal. GroupⅠA elements are known...
The metals on the periodic table, which make up the entire middle section of the table, have certain properties that place them in particular spots on the periodic table, and this quiz/worksheet combo will help you test your understanding of these metals. The questions on the quiz will test...