Which noble gases are not reactive? Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases:helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other...
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The elements in Group 1 are called ___. A. alkaline earth metals B. halogens C. noble gases D. alkali metals 相关知识点: 试题来源: 解析 D。解析:文中提到“the elements in Group 1, also known as the alkali metals”,即第一族的元素也被称为碱金属。反馈 收藏 ...
In period 2 of the periodic table, which group contains the element with the highest first ionization energy? a. alkali metals b. alkaline earth metals c. halogens d. noble gases What is the name of the Group of the Periodic Table in which all the elements have a valence shell ele...
these elements ___on moving down the column while those in column 7 are called the ___and the reactivity of these elements ___on moving down the column (V) elements in the last column are very unreactive and are called the ___(Noble gases)是吗?(VI) which elements in column 7of t...
The noble gases in the periodic table are known for being___. A. very reactive B. slightly reactive C. neutral D. extremely unreactive 相关知识点: 试题来源: 解析 D。稀有气体在元素周期表中以极不活泼著称。选项 A、B 都不符合稀有气体的特点;选项 C 中性不准确,稀有气体是极不活泼。反馈 收藏...
(iv)1.Alkali metals 2.increases 3.halogens 4.decreases (V) Noble gases (VI) F (VII) NaF补充的:you'll see red-brown liquid (Br2) appearing in the solution.因为Cl2把Br2给置换出来了 解析看不懂?免费查看同类题视频解析查看解答 相似问题 关于化学元素周期表(英文) 化学高手进哦~!元素周期表的...
: Additional Evidence That Noble Gases Are Not Biologically Inertdoi:10.1213/ane.0b013e3181887506Paul S. Pagel *Regresar Al Número
Element names ending with -onare noble gases, which are inert or nonreactive gases at room temperature. Most element names end with -ium. These elements are metals, which are usually hard, shiny, and conductive. What youcannottell from an element name or symbol is how many neutrons or elec...
some elements are gases (in a gas, there are larger spaces between the (molecules ). In the Noble Gases, each molecule has only one atom, because the atoms of these elements do not form chemical bonds with each other. In other gases, however, the molecules each have two atoms held toge...