(n) any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium), Syn. alkaline metal, Example:the hydroxides of the alkali metals are strongly alkaline
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
. Any one of the univalent metals of group I of the periodic table of the elements, including lithium, sodium, potassium, rubidium, cesium, and francium. The hydroxides of these metals are soluble in water and form strongly basic solutions. [ PJC. ]
[钫 / 鈁, fāngㄈㄤ] francium Fr, unstable alkali metal 鹼性金屬|碱性金属 with atomic number 87, disintegration product of actinium 錒|锕, See Also: 鹼性金屬, 碱性金属, 錒, 锕#56032