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 ...
Because Group I metals, also known as alkali metals, are very reactive, like the sodium from the rail car or the potassium, they are not found in nature in pure form but only as salts. Not only are they very reactive, they are soft and shiny, can easily be cut even with a dull kn...
Because Group I metals, also known as alkali metals, are very reactive, like the sodium from the rail car or the potassium, they are not found in nature in pure form but only as salts. Not only are they very reactive, they are soft and shiny, can easily be cut even with a dull kn...
In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in vertical columns. Elements of the same period have the same number of electron shells; with each group across a period, the elements have one more ...
What are metals? Learn the definition and different types of metals. See the reactivity and examples of metals present in the periodic table.
The periodic table元素周期表 ThePeriodicTable CompanyLogo 1.Istheelementmetalornon-metal?2.Isitactiveorinactive?3.Aremostofitscompoundscrystalline,ionicsolidsorcovalentsolids,liquidsorgases?LOGO4.Whatarethephysicalpropertiesoftheelement.5.Whattypeofcompoundswilltheelementformwhenitreactswithotherelements?Scientis...
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 ...
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The group B elements are the transition metals. 译文: 元素周期表是在100年前被发现的,它是根据当时已知元素的物理性质靠经验来排列的。现代元素周期表是根据元素的原子个数和电子构型来排列的。现在最常用的周期表又叫长周期表。在这种形式的周期...
The following names for specific groups in the periodic table are in common use: Group 1: alkali metals Group 2: alkaline earth metals Group 11: coinage metals (not an IUPAC approved name) Group 15: pnictogens (not an IUPAC approved name) ...