rubidium
Soft silvery element
Rubidium is a soft, silvery metallic element, atomic number 37.
It belongs to the alkali metals and is highly reactive—igniting spontaneously in air and reacting violently with water.
Rubidium has few everyday applications but finds use in atomic clocks, specialized glass, and scientific research.
properties
Yielding to touch
- ductileAble to deform permanently
- malleableCapable of being shaped
- lustrousSoftly bright, reflective
- solidFirm matter state
density · crystalline · electropositive · reactive · flammable · oxidizes · tarnishes · cesium
element
Atomic number twins
minerals
Act of removing
applications
Devices converting light to electricity
- getterOne who obtains
- magnetometerInstrument measuring field strength
- catalystAgent enabling change
soft
Yielding to touch
solid · density · crystalline · electropositive · reactive · flammable · oxidizes · tarnishes · cesium · potassium
isotopes
Atomic number twins
extraction
Act of removing
photocells
Devices converting light to electricity
- getterOne who obtains
- magnetometerInstrument measuring field strength
- catalystAgent enabling change
- elementsoxygen, hydrogen, carbon, helium, nitrogen
- metalsaluminum, steel, copper, iron, gold
- Alkali Metalslithium, sodium, potassium, cesium, francium
- main group elementshydrogen, helium, lithium, beryllium, boron
- electrolytessodium, potassium, calcium, magnesium, chloride
- reactive metalssodium, potassium, lithium, cesium, francium