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Rubidium
Rubidium is a highly reactive, soft, silvery-white alkali metal with the symbol Rb and atomic number 37. It melts just above room temperature (~39.3°C) and oxidizes instantly when exposed to air. Rubidium reacts violently with water, producing hydrogen gas and rubidium hydroxide.
Key Details:
Chemical Formula / Symbol: Rb
Description: A soft, silvery-white metal belonging to the alkali metal group (Group 1). Highly reactive, it can ignite in air and reacts violently with water.
Common Uses:
- Atomic Clocks: Used for high-precision timekeeping in GPS and telecommunications.
- Electronics: Functions as a "getter" to remove residual gases in vacuum tubes.
- Scientific Research: Utilized in photoelectric cells, ion engines, and laboratory experiments.
- Specialty Glass: Rubidium carbonate improves stability and reduces electrical conductivity in certain glass.
- Fireworks: Produces a purple color in pyrotechnics.
Rubidium is rarely used in large quantities outside of research and specialized electronics due to its high reactivity.
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