A. reactive B. stable C. inert D. non-reactive 相关知识点: 试题来源: 解析 A。原因:文中提到“the alkali metals in Group 1 are all very reactive and have one valence electron.”,即第一组的碱金属都非常活泼且有一个价电子。反馈 收藏 ...
Are all halogens gases? What happens in an oxidation half reaction? Do nonmetals gain or lose electrons? What is the reactant in a redox reaction that readily donates electrons called? Do metallic bonds have delocalized electrons? Is potassium reactive or nonreactive?
Platinum, however, is less reactive than copper and so cannot displace copper from a copper sulfate solution. Reactivity Tests & Extraction Potassium, sodium and lithium all react quickly with cold water to produce a metal hydroxide and hydrogen gas. Most metals react with dilute acids to produce...
Are nonmetals reactive? What are nonmetals? Do nonmetals have luster? Are halogens metals or nonmetals? Are metals or nonmetals ductile? Do nonmetals have high electronegativity? Do metals or nonmetals tend to form positive ions? Where are good conductors generally found on the periodic table...
Re: Are metals soluble in water? I mean they dont react «Reply #3 on:March 01, 2009, 09:16:47 AM » I'd also point out that you can't say just because sodium gives off hydrogen that all metals are insoluble in water, the two concepts are completely different... ...
The metals and nonmetals are separated by the metalloids. Answer and Explanation: The answer is a. metalloids. Metalloids are the elements that can be found between the metals and nonmetals. They are referred as metalloids or...Become a member and ...
Novel reactive dyes, azo, which are complexes of metals which are soluble in water, their preparation and applicationThe invention comprises water-soluble reactive metal complex azo dyes of the general formula wherein D is a metal complex azo compound radical containing at least one water-...
The pink column on the left contains the alkali metals (lithium, sodium, potassium, and so on), which are relatively reactive metals (you probably know that some of them react violently with water, for example, to produce explosive hydrogen gas). If you know where a certain element sits ...
Why do we use metals in wires? (Select all that apply.) a. metals are lustrous b. metals are reactive c. metals conduct electricity d. metals are ductile Why do electrons repel each other? Why are the tin(IV) halides more volatile than the tin(II) halides?
In the periodic table, the most reactive metals are found How many alkali metals are there in the periodic table? How are elements classified in the periodic table? What is the most metallic element? What column is nobelium in on the periodic table?