题目The horizontal rows in the periodic table are called___. A. groups B. periods C. families D. series 相关知识点: 试题来源: 解析 B。元素周期表中的水平行称为周期。选项 A 组是垂直列;选项 C 家族不准确;选项 D 系列也不是水平行的正确名称。反馈 收藏...
百度试题 结果1 题目The horizontal rows in the periodic table are called ___. A. groups B. periods C. lines D. rows 相关知识点: 试题来源: 解析 B。周期表中的水平行被称为周期。A 选项族、C 选项线、D 选项行表述不准确。反馈 收藏 ...
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
The elements of same group of the periodic table have View Solution What happens to number of valence electrons in atoms of elements as we go down a group of the periodic table ? View Solution Exams IIT JEE NEET UP Board Bihar Board ...
(a) down a group and (b) from left to right in a period Q.(a) What is a group in the periodic table? In which part of a group would you separately expect the elements to have (i) the greatest metallic character (ii) the largest atomic size?
A. groups B. periods C. elements D. compounds 相关知识点: 试题来源: 解析 B。本题考查元素周期表的基本结构知识。元素周期表的水平行称为周期(periods)。选项 A“groups”是指族;选项 C“elements”是元素;选项 D“compounds”是化合物。反馈 收藏 ...
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
quasi periodic 准周期的 table n.[C] 1.桌子,台子;餐桌 2.餐桌全套餐具;就餐 3.(常作a table)一桌酒菜;饭菜,伙食 4.工作台;手术台;验尸解剖台 5.会议桌;(谈判、立法等)会议 6.(常作ta Table n. 表格,表,高原,平地层 vt. 搁置,嵌合,桌子,餐桌,工作台,石板,铭文 group n.[C] 1.组,群,...
In the periodic table, what are the trends for changes in ionization energy, down a group and across a period? An element has 35 electrons. In which period of the periodic table is this element located? What is the symbol of the element in Group 4A(14) and Period 2 in t...
Group Structure in the Periodic TableAlgebraChemistryGroup StructureGroupsMathematical ApplicationsMathematicsFirst page of articledoi:10.1111/j.1949-8594.1971.tb08779.xRichard D. BaillieBlackwell Publishing LtdSchool science and mathematics