Rb (Noun)
Meaning
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.
Classification
Nouns denoting substances.
Examples
- The element rubidium, often abbreviated as Rb, is highly reactive and must be handled with care.
- Rb is a highly reactive metal that is rarely found in its elemental form in nature.
- The chemical symbol Rb is used to represent the element rubidium on the periodic table.
- Rb is a soft, silvery-white alkali metal with a melting point of 39 degrees Celsius.
- The discovery of Rb is credited to German chemist Robert Bunsen and German physicist Gustav Kirchhoff in 1861.