百度试题 结果1 题目The periodic table is an important part ___ chemistry. A. of B. for C. in D. at 相关知识点: 试题来源: 解析 A。“an important part of sth.”表示“某物的重要部分”,是固定搭配。反馈 收藏
题目The periodic table is arranged in order of increasing ___. A. atomic number B. atomic weight C. density D. melting point 相关知识点: 试题来源: 解析 B。原因:文中提到“Mendeleev arranged the elements in order of increasing atomic weight.”。 反馈 收藏 ...
The Periodic Table was invented byDmitri Mendeleevin 1869, who was the first scientist to put elements in order of atomic mass. Mendeleev was so clever at spotting patterns he left gaps for undiscovered elements. The modern periodic table is slightly different to the one created by Mendeleev as...
What is the Periodic Table of The Elements?"It is a huge, efficient resource!"The periodic table is the most important chemistry reference there is. It arranges all the known elements in an informative array. Elements are arranged left to right and top to bottom in order of increasing atomic...
A periodic table is the arrangement of the elements based on the recurrence of the properties of the elements. This tabular arrangement of the... Learn more about this topic: The Periodic Table Lesson for Kids: Structure & Uses from
A. the color of elements. B. the size of elements. C. the atomic number of elements. D. the reactivity of E. lements. 相关知识点: 试题来源: 解析 C。元素周期表是按照元素的原子序数排列的。选项 A 颜色不是排列依据;选项 B 大小不是主要依据;选项 D 反应性不是排列的基础。反馈...
Who is famous for the periodic table of elements? A. Mendeleev B. Curie C. Darwin D. Hawking 相关知识点: 试题来源: 解析 A。门捷列夫以元素周期表著名。居里夫人在放射性元素方面有重大贡献;达尔文以进化论闻名;霍金在宇宙学等方面有突出成就。
Periodic tableMadelung ruleThis article considers two important traditions concerning the chemical elements. The first is the meaning of the term "element" including the distinctions between element as basic substance, as simple substance and as combined simple substance. In addition to briefly tracing ...
In the arrangement of elements existing in the periodic table, their respective atomic numbers play an important role. They are arranged in an...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework...
15 Which statement about the Periodic Table is correct? B A All elements in the same group of the Periodic Table have the same number of electrons.B All elements in the same period of the Periodic Table have the same number of electron shells.C The melting points of the elements in Group...