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Krypton Kr

 

Where is krypton used--or where does it impact our everyday lives?

 

 

Krypton    Kr

Atomic number:  36     Atomic Mass:  83.79

Group 18 (noble gas)  Period 4

Melting point   -157.4  oC   (-251.3  oF)

Boiling point   -153.2  oC   (-244.1 oF)

Reaction with air (oxygen) : Krypton does not react with air

Present in the air (1 ppm)

No reaction with water: does dissolve slightly.

Electron configuration: 2, 8, 18, 8

Source: LANL.gov

Researcher: Frances M.

 

 

 

 

 

 

All electronic signs are called "neon" light but different gases in the disharge tube, where a low pressure gas is exposed to a high voltage, will produce different colors dependent on the nature/type of gas and whether mercury vapor is also present as well as the nature of the glass.

Krypton can form white/yellowy lights.

WIS Photographer

Krypton was discovered spectroscopically, where light is split into characteriastic wavelengths.  Here Chemistry One students are studying the spectra of lights and elements.

WIS Photographer

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