Learn about the organization of the periodic table into groups and periods and how these differ. Also learn the history of the periodic table and...
Alternative Forms of the Periodic TableLesson Transcript Instructors Brianna Cowling View bio Kristin Born View bio Jamie Lawton View bio Learn about the organization of the periodic table into groups and periods and how these differ. Also learn the history of the periodic table and its propert...
A period is a horizontal row in the periodic table. All the elements in the same row belong to the same period. The periods are numbered from 1 to 7... See full answer below. Learn more about this topic: Periodic Table Groups vs. Periods | Properties & History ...
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The rows in the periodic table are called ___. A. groups B. periods C. elements D. properties 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“The rows are called periods.”。 反馈 收藏
Periodic Table Groups vs. Periods | Properties & History from Chapter 3 / Lesson 1 686K Learn about the organization of the periodic table into groups and periods and how these differ. Also learn the history of the periodic table and its properties. R...
Periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern called the ‘periodic law’ in their properties, in which elements in t
When Was the Periodic Table Invented? The first period of the periodic table is complete at helium, when theKshell is filled with two electrons. The first and second short periods represent the filling of the 2sand 2psubshells (completing theLshell at neon) and the 3sand 3psubshells (at...
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
A. the number of protons an element has B. the number of neutrons an element has C. the number of electron shells an element has D. the number of E. lectrons an element has 相关知识点: 试题来源: 解析 C。解析:The periods represent the number of electron shells an element has.反馈...