Krypton is a rare noble gas that produces bright spectral lines and is used where a dense, inert gas is advantageous.
Atomic number
36
Category
Noble gas
Period
4
Group
18
State
Gas
Fun facts about Krypton
It is recovered during fractional distillation of liquid air.
Krypton discharge tubes can glow whitish with coloured spectral lines.
Its low abundance makes it costlier than argon.
Common uses of Krypton
High-performance lighting
Insulating window fills
Excimer lasers
Where Krypton sits in the periodic table
Krypton is classified as a noble gas in period 4 and group 18 of the periodic table. Under the conditions represented in this reference, its state is gas.
Quick chemistry revision
For quick revision, pair the symbol Kr with atomic number 36 and the listed atomic mass 83.798. The summary, facts, and uses above keep those element properties together in one reference.