The noble gases in the periodic table are known for being___. A. very reactive B. slightly reactive C. neutral D. extremely unreactive 相关知识点: 试题来源: 解析 D。稀有气体在元素周期表中以极不活泼著称。选项 A、B 都不符合稀有气体的特点;选项 C 中性不准确,稀有气体是极不活泼。反馈 收藏...
periodic table with atomic number, symbol, and atomic weight Periodic table showing each element's atomic number, symbol, and atomic weight. Encyclopædia Britannica, Inc. periodic system of elements with periods demarcated by noble gases
解析 1 :the periodic table are seperated into periods,there are 4 groups metals,non-metals,metalloids and noble gases. each group's elements all have atomic number which is the number of protons found in the nucleus of an atom.2: Plutonium is not formed by the death of a star in a su...
78.1. THE PERIODIC TABLE 元素周期表 (图片可点击放大) In this section, we will explore the periodic table, which organizes chemical elements and provides valuable information about their properties and relationships. Understanding the periodic ...
While scientists categorize the chemical elements as metals, nonmetals, and metalloids largely based on the elements' abilities to conduct electricity at normal temperatures and pressures, there are other distinctions that are taken into accou...
解析 1 :the periodic table are seperated into periods,there are 4 groups metals,non-metals,metalloids and noble gases.each group's elements all have atomic number which is the number of protons found in th...结果一 题目 1.explain the layout of the periodic table.includ these words:groups,...
元素周期表 - Periodic Table of Elements 1.1 原子与元素 - Atom and Element 1.2 周期 - Period 1.3 族 - Group 1.4 成组元素 - Collective of Elements 基础化合物的命名构词法 - Basic Compound Nomenclature 2.1 物质的分类 - Classification of Matter ...
In this article, we'll break down everything you need to know about the periodic table. From its history and layout to its key elements and groups
What are the 8 groups of the periodic table? The 8 groups of the periodic table are the Alkali Metals, Alkaline Earth Metals, Boron Family, Carbon Family, Nitrogen Family, Oxygen Family, Halogens, and Noble Gases. What are the 7 periods on the periodic table? There are 7 periods on the...
What are the 8 groups of the periodic table? The 8 groups of the periodic table are the Alkali Metals, Alkaline Earth Metals, Boron Family, Carbon Family, Nitrogen Family, Oxygen Family, Halogens, and Noble Gases. What are the 7 periods on the periodic table? There are 7 periods on the...