Among these elements, which non - metal is a diatomic molecule in nature? A. Neon B. Hydrogen C. Argon D. Krypton 相关知识点: 试题来源: 解析 B。解析:Hydrogen(氢)是非金属元素,在自然界中以双原子分子H₂的形式存在。Neon(氖)、Argon(氩)和Krypton(氪)是稀有气体元素,它们是单原子分子。
Which of the following elements is a metal? a. Nitrogen b. Fluorine c. Argon d. Strontium e. Phosphorus In ionic compounds, gain valence electrons to form. a) metals; atoms b) nonmetals; positive ions c) nonmetals; negative ions d) me...
Among these elements, which one is a non - metal element known for its excellent electrical conductivity? A. Silver B. Copper C. Graphite D. Iron 相关知识点: 试题来源: 解析 C。解析:Graphite(石墨)是碳的一种同素异形体,属于非金属元素,它以良好的导电性而闻名。Silver(银)、Copper(铜)和Iron...
百度试题 结果1 题目8. Which one of the following elements is no alkali metal: B(A)Na(B) Sr(C)Cs(D) Fr 相关知识点: 试题来源: 解析 B 反馈 收藏
Of the following elements, which possesses the highest electron affinity? AAs BO CS DSeSubmit Which of the following elements will have the highest electron affinity? ANitrogen BFluorine CChlorine DPhosphorusSubmit The highest electron affinity is shown by AO− BF− CCl2 DF2Submit ...
百度试题 结果1 题目Which color pertains to metal in five elements?A.greenB.redC.yellowD.white 相关知识点: 试题来源: 解析 D 反馈 收藏
What name is given to the elements with atomic numbers greater than 92? What property makes metal a good conductor and rubber a good insulator? Give the name of each element. (a) Cu (b) Bi (c) Ti List the noble gas elements.
Can it he drawn out to make a fine wire? We also examine its chemical properties. Will it resist acid (酸) ? Is it too active to use? Is it easy to combine [ (使)结合] with other elements? Each use must be studied carefully. Then we can choose the right kind of metal, or ...
Improvements to the construction elements comprising a metal sheet or plate with projections, which are assembled with another sheet or plate, smooth or bossesSOURDIS PIERRE
a. metalloids b. metals c. liquids d. nonmetals Types of Elements in the Periodic Table: The periodic table is an arrangement of elements into various horizontal rows called periods and vertical columns called groups in the increasing order of their at...