Chapter 5 The Periodic Table: Group2MgO
essentially periodic sequence 本性周期序列 mean periodic functions 平均周期函数 相似单词 periodic a. 1.周期的,定期的,循环的 2.高碘的 3.封闭的(曲线) non periodic 非周期,非周期的 periodic(al) 定期的,间歇 quasi periodic 准周期的 table n.[C] 1.桌子,台子;餐桌 2.餐桌全套餐具;就餐 3...
aon descending a group in the periodic table such as lithium,sodium,potassium,rubidium,caesium,the size of the atoms increases due to the effect of extra shells of electrons being added;this outweighs the effect of increased nuclear charge 在周期表里下降一个小组例如锂,钠,钾,铷,铯,原子增量的...
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
21 Elements X and Y are in the same Group of the Periodic Table.Which statement must be correct? A A Atoms X and Y have similar electronic structure. B Atoms X and Y have the same physical properties. C If X has a smaller proton number than Y, it is less metallic. D The number ...
To determine which group in the periodic table contains elements in all three physical states (solid, liquid, and gas) at room temperature, we can analyze each group provided in the options. 1. Identify the Groups: We have four groups to consider: - Group 5A (Nitrogen family) - Group ...
The meaning of GROUP is two or more figures forming a complete unit in a composition. How to use group in a sentence.
Delectronegativity decreases on moving down a group Submit Delectronegativity decreases on moving down a group Submit DElectronegativity decreases on moving down a group Submit The elements of same group of the periodic table have View Solution ...
15 Rubidium is an element in Group I of the Periodic Table. Which one of the following statements about rubidium is incorrect? D A Rubidium has a low density. B Rubidium is soft and can be cut with a knife.C Rubidium reacts explosively with water to form an alkaline solution.D Rubidium...
百度试题 结果1 题目25 Selenium, Se, is in the same group of the Periodic Table as sulfur, S What is the formula of sodium selenide? A ANa2Se BNaSeO C Na2SeO D Na SeO: 相关知识点: 试题来源: 解析 A 反馈 收藏