01 About Argon
Makes up 1% of Earth's atmosphere - more abundant than COโ. Argon's name comes from the Greek for "lazy" since it forms virtually no compounds.
02 Physical Properties
State at room temperature๐จ Gas
Melting point-189.3 ยฐC
Boiling point-185.8 ยฐC
Density0.00178 g/cmยณ
Atomic mass39.948 u
Electron configuration2,8,8
Period / GroupPeriod 3, Group 18
BlockS-block
03 Discovery
Argon was discovered in 1894 by Rayleigh/Ramsay.