Tom Sharp
Unlike helium, argon is denser than air, so can pool into a confined space. Although it is not toxic; it is futile to breathe.
See also in The book of science:
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Unlike helium, argon is denser than air, so can pool into a confined space. Although it is not toxic; it is futile to breathe.
See also in The book of science:
Readings on wikipedia:
Other readings: