Portrait of Daniel Rutherford

Adapted from ⁠an image by William Ramsay (public domain), via Wikimedia Commons.

1749–1819

Daniel Rutherford

Discovered nitrogen in 1772.

Element

7NNitrogen
1772

Others had made the gas left over when a candle burns out in a closed jar of air, but Daniel Rutherford, a student at Edinburgh, was the first to describe it as a substance of its own, in his thesis of 1772. It put out flames and could not support life.

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