36
Kr
Krypton
83.798 u
Krypton
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Cite "Krypton"
Krypton. (n.d.). In Element. Retrieved from /element/kr/
"Krypton." Element, /element/kr/.
@misc{krypton, title={Krypton}, url={/element/kr/}}
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Period
4
Group
18
Block
p-block
Phase (STP)
Gas
Krypton is a noble gas used in certain fluorescent lamps and photographic flashes. Its spectral lines were once used to define the meter.
Appearance: Colorless gas, white solid
More Noble Gas
Frequently Asked Questions
What is Krypton?
Krypton (Kr) is a chemical element with atomic number 36. It is a gas at standard temperature and pressure, classified as a noble gas.
What are the key properties of Krypton?
Krypton has an atomic mass of 83.798 u, density of 0.003749 g/cm³, melting point of -157.4°C, boiling point of -153.2°C.
What is the electron configuration of Krypton?
The electron configuration of Krypton is [Ar] 3d10 4s2 4p6. It is in the p-block of the periodic table.
Who discovered Krypton?
Krypton was discovered by William Ramsay in 1898.
What is the electronegativity of Krypton?
Krypton has an electronegativity of 3.0 on the Pauling scale.