Argon

1894

Argon

The book of science

Tom Sharp

LondonJohn William Strutt Lord Rayleigh, William Ramsay elements

Argon

Atomic number 18

Nobility

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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