Rb - Definition, Meaning & Synonyms | Vocabulary.com
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WEBMar 2, 2024 · noun. a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite. synonyms: atomic number 37, rubidium. see more. Cite this entry. Style: MLA. "Rb." Vocabulary.com Dictionary, Vocabulary.com, https://www.vocabulary.com/dictionary/Rb. …
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