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 ...
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...
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
百度试题 结果1 题目What are the horizontal rows in the periodic table called? A. Groups B. Blocks C. Periods D. Orbitals 相关知识点: 试题来源: 解析 C。原因:文章中明确提到“The horizontal rows are called periods.”。 反馈 收藏
百科挑战题1) What is the letter forprop in the periodic table of chemical elements(化学素周期)? A.Fe B.Zn C.Ha2) What is the best way to look up information on the interne? A. By using e-mail B. By using QQ B33) What is the material of pengl leag()? A.lime B. graphite(...
What is the periodic table used for in science? What happens to the properties of elements across any period of the periodic table? What groupings on the periodic table are made up of elements that react similarly? What property did Dmitri Mendeleev use to arrange the ele...
"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 number. This order generally coincides with ...
The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom ...
Bismuth is diamagnetic. Magnets repel it. Neon is the least reactive element in the Periodic Table and is used in neon signs. Titanium is very strong and very, very light! Ideas for learning about the Periodic Table Teach Beside Me has an amazingPeriodic Table Battleshipsgame. ...
结果1 题目 21 Period 3 of the Periodic Table is shown.Na Mg AL Si PS Cl Ar What increases from left to right across Period 3? C A density B melting point C non-metallic character D the number of electron shells 相关知识点: 试题来源: 解析 C 反馈 收藏 ...