What is tin on the periodic table?Periodic table:There are 118 known elements that are organized on the periodic table. The periodic table was developed by a Russian scientist named Dmitri Mendeleev. The elements are organized by the number of protons in their nucleus, called the atomic number...
百度试题 结果1 题目What is a row of elements on the periodic table called? A. octave B. period C. group D. transition 相关知识点: 试题来源: 解析 B 反馈 收藏
结果1 题目What are the horizontal rows in the periodic table called? A. Groups. B. Periods. C. Elements. D. Compounds. 相关知识点: 试题来源: 解析 B。中文解析:“The periods are horizontal rows”,周期表中的水平行称为周期。反馈 收藏 ...
The modern periodic table is slightly different to the one created by Mendeleev as it is ordered by atomic number, not atomic mass. Chemical symbols that don’t look like their name Each element has a chemical symbol that is the same in every language. Some are obvious, such as Li for L...
The periodic table of the elements is a representation of all known elements in an orderly array. The periodic law presented by Dmitri Mendeleev in 1869 stated that if the (known) elements are arranged by atomic weight, then certain trends in chemical properties can be observed. That is to ...
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...
那员效动矿西济战别完油What is the second element on the periodic table of elements? 那员效动矿西济战别完油A
The above question can be answered by having a thorough study of the periodic table and understanding how and why the elements are placed at certain specific positions. The periodic table is orderly arrangement of elements in various periods and groups on the basis of their atomic number, ...
What is Atom? An atom consists of a fixed number of protons, electrons and neutrons, which makes each element unique. Protons and neutrons together make up thenucleus of an atomwhile the electrons orbit around it. In the periodic table, a chemical element is represented by a fixed format :...
athe file is either damaged orwa not installed correctly.please uninstall then installing it again 文件是任一损坏的orwa没安装的correctly.please卸载再然后安装它[translate] a一直;始终 Continuously; Throughout[translate] asituations shirts 情况衬衣[translate] ...