Rubidium
noun
A chemical element that is soft and has a silvery-white color.
Rubidium is often used in vacuum tubes as a getter, a material that combines with and removes trace gases from vacuum tubes.
Often appears as...
- rubidium compound
- rubidium chloride
Usage tips
Technical
noun
A chemical element that is soft and has a silvery-white color.
Rubidium is often used in vacuum tubes as a getter, a material that combines with and removes trace gases from vacuum tubes.
Often appears as...
- rubidium compound
- rubidium chloride
Usage tips
Technical
Definition 1 of 1
Pro Tip 1/3Element Symbol
Rubidium is represented by the symbol 'Rb' in the periodic table.
Rb is the atomic symbol for rubidium.
Pro Tip 2/3Scientific Usage
Rubidium is a term mostly used in scientific contexts, not in everyday conversation.
The scientist measured the rubidium content in the mineral sample.
Pro Tip 3/3Chemical Properties
Rubidium reacts violently with water and should be handled with care.
She wore gloves when handling rubidium due to its reactivity with moisture.
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Video examples
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where the change in energy is equal to a number, called Planck's constant, times the frequency. That characteristic frequency is what we need to make our clock. GPS satellites rely on cesium and rubidium atoms as frequency standards.
Video examples
How does your smartphone...
where the change in energy is equal to a number, called Planck's constant, times the frequency. That characteristic frequency is what we need to make our clock. GPS satellites rely on cesium and rubidium atoms as frequency standards.
Example 1 of 1
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