the.com/argon

the noble gas so aloof it refuses to bond with anyone, ever

means Argon is a colorless, odorless inert gas (element 18) that makes up nearly one percent of Earth's atmosphere and almost never reacts with anything.

from From the Greek 'argos,' meaning 'lazy' or 'idle' (literally 'a-' not + 'ergon' work — the same 'ergon' behind 'energy'). When it was discovered in 1894, its stubborn refusal to react with other elements earned it the name of a layabout — chemistry's most committed slacker.

name origin
Greek for lazy or inactive
air share
third most abundant gas you breathe
no reactions
forms almost zero stable compounds
light bulbs
fills bulbs to stop filaments burning out
diver killer
high pressure makes it dangerously narcotic
for instance

argon-40 — most abundant isotope of argon, making up 99.6% of naturally occurring argon

argon-39 — radioactive isotope used in potassium-argon dating of rocks, half-life 269 years

argon-36 — isotope detected in meteorites, helps trace solar system formation

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