- any of the monovalent metals lithium, sodium, potassium, rubidium, caesium, and francium, belonging to group 1A of the periodic table. They are all very reactive and electropositive
| 单词 | alkali metal |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 al′kali met′al, [Chem.]
Collins Concise English Dictionary © HarperCollins Publishers:: alkali metal n
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