37
Rb
Rubidium
85.468 u
Rubidium
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Period
5
Group
1
Block
s-block
Phase (STP)
Solid
Rubidium is a soft, silvery-white alkali metal that ignites spontaneously in air. It is used in atomic clocks and specialty glass.
More Alkali Metal
Frequently Asked Questions
What is Rubidium?
Rubidium (Rb) is a chemical element with atomic number 37. It is a solid at standard temperature and pressure, classified as a alkali metal.
What are the key properties of Rubidium?
Rubidium has an atomic mass of 85.468 u.
What is the electron configuration of Rubidium?
The electron configuration of Rubidium is [Kr] 5s1. It is in the s-block of the periodic table.
What is the electronegativity of Rubidium?
Rubidium has an electronegativity of 0.82 on the Pauling scale.