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“元素周期表”的网络教学
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作者 冷永刚 《网络科技时代(信息技术教育)》 2002年第9期46-47,共2页
一、教材分析元素周期表是现行教材高一化学第五章第三节的教学内容,是在学生掌握了元素周期律这一理论知识后进行的。元素周期表是元素周期律的具体表现形式,是周期律的图表化,它是学习化学的一种重要工具,对整个中学化学教学具有重要... 一、教材分析元素周期表是现行教材高一化学第五章第三节的教学内容,是在学生掌握了元素周期律这一理论知识后进行的。元素周期表是元素周期律的具体表现形式,是周期律的图表化,它是学习化学的一种重要工具,对整个中学化学教学具有重要的指导作用。对于学生,要求在掌握元素周期表结构特点的基础上,能理解元素的性质、元素在周期表中的位置与原子结构三者的相互转换关系,知道元素周期表的用途,同时利用元素周期表中元素性质的递变规律,感受量变到质变的哲学原理。为了保持知识的连贯性,本节中核素和同位素的知识在本章第一节原子结构中已提前介绍了。 展开更多
关键词 “元素周期表” 网络教学 高中 化学教学
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“元素周期表”(第一课时)教案(试验修订本)
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作者 黄延旭 《中学化学》 2001年第1期7-9,共3页
关键词 “元素周期表” 第一课时 教案 试验修订本 教学目标 教学方法 中学 化学教学
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“元素周期表结构”新课切入四法 被引量:1
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作者 沈联东 张兴前 《化学教育》 CAS 2004年第11期26-26,29,共2页
关键词 中学 化学教学 课堂教学 新课导入法 “元素周期表结构”
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“元素周期表创新设计大赛”的回顾
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作者 涂耀林 左仕斌 《化学教育》 CAS 2004年第11期27-29,共3页
本文为本人自 1 998年开展创新教育研究以来在本校每届高一年级学生中首创并一直主持研究“元素周期表创新设计大赛”的活动回顾 ,比较详细而系统地介绍了活动的组织和实施方案、研究进展和完善过程、成果展示及活动产生的影响。该活动... 本文为本人自 1 998年开展创新教育研究以来在本校每届高一年级学生中首创并一直主持研究“元素周期表创新设计大赛”的活动回顾 ,比较详细而系统地介绍了活动的组织和实施方案、研究进展和完善过程、成果展示及活动产生的影响。该活动主要是通过创设问题情景 ,启发学生思维 ,引导学生探索 ,自己主动地去搜集信息 ,学会运用和处理信息 ,进行研究性学习 ,从而培养和提高学生的自学能力、思维能力和创新品质。 展开更多
关键词 中学 化学教学 创新教育 “元素周期表创新设计大赛”活动 创新能力
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Study on the methods to calculate the numbers of elements in every period in the periodic table
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作者 WU Zhi-fu DENG De-hua +2 位作者 SHEN Yu-hua XIE An-jian CHEN Zhang-xu 《Journal of Chemistry and Chemical Engineering》 2008年第4期71-74,共4页
The previous methods of figuring the numbers of chemical elements is summed up in this paper. Based on that, another two creative calculative methods are introduced as well.
关键词 the periodic table of elements the odd number theeven number calculative methods
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The Nuclear Chemistry Odd-Even Periodic Table of the Elements
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作者 SHEN Yu-hua WU Zhi-fu +2 位作者 XIE An-jian DENG De-hua MA Ying 《Journal of Chemistry and Chemical Engineering》 2009年第4期59-65,共7页
Odd-Even Periodic Table of Chemical Elements designed by the authors settles the position of Hydrogen and Helium, Additionally, it yields no exceptional arrangements for neither the Lanthanides, Actinide and Super Act... Odd-Even Periodic Table of Chemical Elements designed by the authors settles the position of Hydrogen and Helium, Additionally, it yields no exceptional arrangements for neither the Lanthanides, Actinide and Super Actinides nor the six empty spots and the controversy on the positions of hydrogen and helium has been settled. It plays an important role in comparing the stability of nucleons and predicting the ordinal of the terminal element. 展开更多
关键词 nuclear chemistry Periodic Table odd number even number
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The New Approach of Expansion Baldwin-Aibassov's Rules for Ring-Closing Reaction for d- and f-elements Periodic Table of Elements
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作者 Aibassov Yerkin Yemelyanova Valentina +2 位作者 Shakieva Tatyana Bulenbaev Maxat Blagikh Evgeniy 《Journal of Chemistry and Chemical Engineering》 2017年第2期75-78,共4页
The authors have studied the effect of a magnetic field on Baldwin's rules. The authors have proposed a new mechanism that takes into account the effect of the angle and energy endo- or exo-cyclization. The authors p... The authors have studied the effect of a magnetic field on Baldwin's rules. The authors have proposed a new mechanism that takes into account the effect of the angle and energy endo- or exo-cyclization. The authors propose to extend the rule Bouldwin not only for sp^3-, sp^2- and sp- orbits, but and for d^1 - d^10 and f^1 - f^14 elements of I-VIII of the Periodic table. 展开更多
关键词 Magnetic field mechanism of the Baldwin's rule endo- or exo-cyclization.
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The codes of matter and their applications
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作者 Xiao-Lin Wang 《Science Bulletin》 SCIE EI CAS CSCD 2015年第19期1661-1673,共13页
The elements in the periodic table are the building blocks used to form substances with different compositions. Nevertheless, it is the properties of substances that are decisive for their existence and practical appl... The elements in the periodic table are the building blocks used to form substances with different compositions. Nevertheless, it is the properties of substances that are decisive for their existence and practical applications. Searching for new class of materials with exotic properties has always been challenging because of the complexity of both the theoretical and the experimental approaches developed so far. Here, we propose that the three ubiquitous and paramount attributes of all existing matter charge(Q), spin(S) or rotational motion, and linear motion(K) can be used to account for the formation of different types of matter/materials and their properties that have been or will be known to us. The three attributes or original codes can produce six primary codes which can further produce another sixty codes. The physical meanings represented by each code are unlocked. The table consisting of the 60 codes is introduced as the table of properties of codes of matter. We demonstrate that these codes can be used as building blocks to form new properties and new materials. Many new types of quasiparticles and new classes of materials with exotic properties of Q, S and K are predicted. Their possible experimental realizations are proposed. The possible applications of the codes of matter in other fields such as elementary particles, photonics and chemistry are briefly discussed. We know that there should be more new materials and new electronic, spin and photonic states to be discovered, but we do not know what they are. The codes of matter clearly reveal to us how many and what they are and how easily we can recognize what they are. Experimental and theoretical exploration for new forms of matter, new quasiparticles, or new electronic and spin states, or new states of photon or properties of light, as well as macroscopic entities with exotic properties represented by the codes of matter, is imminent. 展开更多
关键词 New materials New electronic state New method Materials design
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Periodic tables of diatomic and triatomic molecules
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作者 KONG FanAo & WU WeiQiang Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China 《Science China Chemistry》 SCIE EI CAS 2012年第4期618-625,共8页
The Mendeleev periodic table of atoms is one of the most important principles in natural science. However, there is shortage of analog for molecules. Here we propose two periodic tables, one for diatomic molecules and... The Mendeleev periodic table of atoms is one of the most important principles in natural science. However, there is shortage of analog for molecules. Here we propose two periodic tables, one for diatomic molecules and one for triatomic molecules. The form of the molecular periodic tables is analogous to that of Mendeleev periodic table of atoms. In the table, molecules are classified and arranged by their group number G, which is the number of valence electrons, and the periodic number P, which represents the size of the molecules. The basic molecular properties, including bond length, binding energy, force constant, ionization potential, spin multiplicity, chemical reactivity, and bond angle, change periodically within the tables. The periodicities of diatomic and triatomic molecules are thus revealed. We also demonstrate that the periodicity originates from the shell-like electronic configurations of the molecules. The periodic tables not only contain free molecules, but also the "virtual" molecules present in polyatomic molecules. The periodic tables can be used to classify molecules, to predict unknown molecular properties, to understand the role of virtual molecules in polyatomic molecules, and to initiate new research fields, such as the periodicities of aromatic species, clusters, or nanoparticles. The tables should be of interest not only to scientists in a variety of disciplines, but also to undergraduates studying natural sciences. 展开更多
关键词 molecular periodicity periodic table diatomic molecules triatomic molecules molecular property
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