alkali metal

英 美
  • n.碱金属
  • alkali n.碱
  • metal n.金属;合金;玻璃液vt.(以金属)覆盖、装配
Noun:
  1. any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium);

    "the hydroxides of the alkali metals are strongly alkaline"

    用作名词 (n.)
    1. The free alkali metals react immediately with water to liberate hydrogen.
      游离的碱金属直接和水中作用,放出氢气。
    2. Conclusion Alkali elements have the positive effect on the crystal of sapphire.
      结论碱金属元素对山东蓝宝石的结晶有积极的推动作用。