碱性金属元素,basic metal elements
1)basic metal elements碱性金属元素
2)alkali metal element碱金属元素
1.Thealkali metal elements were determined by the non-flame atomization method on tradition flame atomic absoption spectrophotometer which was installed special prepared stainless steel atomizing tube.在常规火焰原子吸收分光光度计上采用特制的不锈钢原子化管对碱金属元素进行无火焰原子化法测定,克服了碱金属元素在火焰中的电离效应,试液用量极少。
2.The thesis presents the effect ofalkali metal elements (Cs, Rb, Li ) and dosage of melting salt on activity of sulfuric acid catalyst at low temperature, which has been prepared with metallurgical waste liquid.研究了用冶金废液制备的低温硫酸催化剂中铯、铷、锂等碱金属元素的助催化作用和熔盐用量对催化剂低温活性的影响 。
英文短句/例句
1.Experimental Study for the Influence Mechanism of the Contents of Alkali Elements, Lithium, Sodium, Potassium to Electric Conduction in the Fly Ash;锂、钠、钾等碱金属元素对飞灰介电性质影响机理的实验研究
2.Control Alkali Metals During BF Smelting Operation at Nangang南(昌)钢碱金属元素在高炉冶炼过程中的跟踪控制
3.Effects of Doping Alkaline Metal Proportion on Degradation and Mineral Precipitation of Calcium Polyphosphate碱金属元素掺杂比例对聚磷酸钙降解和矿化性能的影响
4.a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite.一种软质的银白色或淡黄色碱金属元素，在空气中变黄，见于天青石和菱锶矿中。
5.INVESTIGATION OF ENHANCEMET EFFECT OF ORGANIC REAGENT ON YTTERBIUM IN THE PRESENCE OF ALKALI METAL IONS IN AAS在碱金属元素存在下有机试剂对镱的空气-乙炔火焰原子吸收光谱分析的增敏作用
6.Improvement of AB_3-type Hydrogen Storage Alloy by Adding Alkaline-earth Metals碱土金属元素改性AB_3型贮氢合金
7.a radioactive element of the alkali-metal group discovered as a disintegration product of actinium.一种碱金属属的放射性元素，是锕瓦解的产物。
8.a soft silvery metallic element of the alkali earth group; found in barite.一种软质银色的金属元素，属碱土金属，见于重晶石中。
9.The elements such as copper, sliver and gold, the so-called coinage metals, are sometimes treated with the alkalis.诸如元素铜、银和金等所谓的货币金属，有时被与碱金属一同看待。
10.Os(atomic No76)(一种金属元素) 锇
11.optical element of the halides of the alkali or alkaline-earth metals, unmounted碱金属或碱土金属卤化物光学元件,未装配的
12.a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals.一种银白色软质单价元素，碱金属属，已知最轻的金属，存在于许多矿物中。
13."Beryllium: Chemical element, lightest of the alkaline earth metals, chemical symbol Be, atomic number 4."铍: 碱土金属中最轻的化学元素,化学符号Be,原子序数为4。
14.a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal.一种质地柔软的银白色韧性金属元素（常温时为液体），是最具正电性与碱性的金属。
15.systematic inorganic chemistry of metallic elements金属元素系统无机化学
16.A nonmetallic element, such as carbon, that can form an alloy with metals.非金属能与金属结合生成合金的非金属元素，例如碳元素
17.Element 32 is the most reactive nonmetal.元素32是活性最大的非金属元素。
18.A nonmetallic element, such as arsenic, that has some of the chemical properties of a metal.准金属，类金属具有一些金属化学特性的非金属元素，例如砷
相关短句/例句
alkali metal element碱金属元素
1.Thealkali metal elements were determined by the non-flame atomization method on tradition flame atomic absoption spectrophotometer which was installed special prepared stainless steel atomizing tube.在常规火焰原子吸收分光光度计上采用特制的不锈钢原子化管对碱金属元素进行无火焰原子化法测定,克服了碱金属元素在火焰中的电离效应,试液用量极少。
2.The thesis presents the effect ofalkali metal elements (Cs, Rb, Li ) and dosage of melting salt on activity of sulfuric acid catalyst at low temperature, which has been prepared with metallurgical waste liquid.研究了用冶金废液制备的低温硫酸催化剂中铯、铷、锂等碱金属元素的助催化作用和熔盐用量对催化剂低温活性的影响 。
3)alkali elements碱金属元素
1.A study on the mechanism that thealkali elements promote the crystal of sapphire;碱金属元素对山东蓝宝石结晶的促进作用研究
2.The modifying effects ofalkali elements on various Fe-C cast alloys are presented论述了碱金属元素对多种铁碳铸造合金的重要改性作用。
4)alkali metal and alkaline earth metal碱金属及碱土金属元素
1.Study on physical and chemical properties ofalkali metal and alkaline earth metal;碱金属及碱土金属元素性质的多元分析
5)alkali(ne)-earth metal碱土金属元素
6)elements of metal元素金属性
1.Elements of metal hydroxides lively and the pH have no direct link,which can not beelements of metal hydroxides to measure the strength of basic strength.元素金属性的强弱主要取决于"原子结构特征",可用相对电负性或E0大小来量度;而氢氧化物酸碱性只与化合物的离解有关,主要由物质的结构及离子极化决定,可由电离常数Kb或离子势(Φ)来量度。
延伸阅读
碱金属元素分子式：分子量：CAS号：性质：周期表中第的I族主族元素。包括锂Li、钠Na、钾K、铷Rb、铯Cs和钫Fr等六种元素。它们的氢氧化物易溶于水，都有强碱性，因而得名。除钫外，都以化合物态存在于自然界中。原子的内电子层都是稳定的，最外层只有1个电子，易于失去而成+1价。密度小，熔点低，硬度小，导电性强。化学性质非常活泼，是强还原剂。唯有锂的性质更类似于碱土金属。其中钠与钾具有较大的实用价值。
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