1·Francium is the densest of the Alkali Metals and also radioactive.
钫是碱金属中密度最大的，具有放射性。
2·The free alkali metals react immediately with water to liberate hydrogen.
的 碱金属直接和水中作用，放出氢气。
3·The resonance energies and the bond orders of alkali metals and graphite were calculated.
计算了碱金属和石墨的共轭能和键级。
4·Potassium: chemical element, one of the alkali metals, chemical symbol k, atomic number 19.
钾：一种碱金属化学元素，化学符号k，原子序数19。
5·So, you can see the alkali metals here: Li Be Mg all the way over here to neon and argon where you have stability.
所以大家看碱金属及碱土金属：,一个电子，lithium，，one，electron，两个，，and，then，beryllium，，magnesium，，two，electrons，所有的方法都是,让他们达到Ne，Ar的稳定结构。
6·Other Alkali Metals include Hydrogen (technically not a metal), Lithium, Sodium, Potassium, Rubidium, and Cesium.
其它碱金属包括氢(技术上说不是种金属)，锂，钠，钾，铷，铯。
7·This article introduces the existent problems and improvement methods about the Chemistry's Chapter Alkali Metals.
叙述《碱金属》一章的有关实验存在的问题和改进方法。
8·Alkali: Inorganic compound, any soluble hydroxide -oh. of the alkali metals: lithium, sodium, potassium, rubidium, and cesium.
碱：无机化合物，任何碱金属，即锂、钠、钾、铷、铯的可溶氢氧化物。
9·Experiments were performed to investigate heat transfer characteristics of liquid alkali metals in a micro-circular enclosure.
本文选用钠钾合金工质来研究封闭循环小通道内液态碱金属的热驱动换热性能。
10·With the characteristic of fluidized burning, this technology avoids alkali metals problem and the adaptability problem of changeful straw fuel.
该技术利用流态化燃烧的固有特点，避免了碱金属问题和针对多变秸秆燃料的适应性问题。