What does RB mean in US Government?
This page is about the meanings of the acronym/abbreviation/shorthand RB in the Governmental field in general and in the US Government terminology in particular.
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What does RB mean?
- rubidium, Rb, atomic number 37(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