A. all the elements in the universe B. only the elements found on Earth C. most of the elements known to humans D. some of the common E. lements 相关知识点: 试题来源: 解析 C。本题考查对化学元素周期表的基本认识。选项 A,宇宙中的所有元素目前并没有全部在元素周期表中展示出来;选项 ...
百度试题 结果1 题目The periodic table is used to o all the elements, or things that make up our world. 相关知识点: 试题来源: 解析 organize 反馈 收藏
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A. All elements are solids. B. Elements in different periods have no similarities. C. The periodic table helps us understand the relationships between elements. D. The periodic table only shows the names of E. lements. 相关知识点: 试题...
周期表Periodic Table of the Elements
Learning about these things helps us better understand the world we live in.But have you ever noticed something missing in the periodic table? There were already 114 elements. But the seventh row of the table was not f(5)___, until now! In December, scientists from IUPAC(国际理论与应用化...
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
The Periodic Table of Elements 1 HYDROGEN H 1 7 6 4 BERYLLIUM 3 LITHIUM Li 23 Be 9 24 CARBON C 12 23 Atomic Number = Number of Protons = Number of Electrons Chemical Symbol Chemical Name Atomic Weight = Number of Protons + Number of Neutrons* 5 6 2 BORON B 11 27 CARBON C 12 28...
百度试题 结果1 题目The elements in the periodic table are arranged ___ a specific way. A. in B. on C. at D. by 相关知识点: 试题来源: 解析 A。“in a specific way”表示“以一种特定的方式”,是固定搭配。反馈 收藏
化学元素周期表的英文全称 Periodic Table of the Elements 缩写 PTE 拉丁文 英文 1 H 氢 Hydrogenium Hydrogen 2 He 氦 Helium Helium 3 Li 锂 Lithum Lithum 4 Be 铍 Beryllium Beryllium 5 B 硼 Borium Boron 6 C 碳 Carbonium Carbon 7 N 氮 Nitrogenium Nitrogen 8 O 氧 Oxygenium Oxygen 9 F ...