[sigmoid10]

The title is a typo. "Phosphorous" is an adjective. The correct noun is "phosphorus." The linked article uses it correctly, so only OP screwed up here.

[mkii]

Yet the article url's slug uses the adjective, but it's grammatically correct! "2023-11-phosphorous-outskirts-milky.html"

And still yet, the article's diagram's caption does not use the correct word!! "Currently known Galactic distribution of phosphorous."