This element is found in the major acid used in soda, while its highly flammable red allotrope is used to coat the heads of matches.
Along with various rare earth elements, this element is extracted commercially from the mineral apatite. This element lends its name to a type of photoluminescence associated with forbidden quantum transitions. This element is reacted with sulfuric acid and then neutralized for use in fertilizer, and in the most common plus five oxidation state this element's strong acid is triprotic. This element is found in the major acid used in soda, while its highly flammable red allotrope is used to coat the heads of matches. Along with calcium, this is the major constituent mineral of bones. For 10 points, name this element in the same period as nitrogen, which has atomic number fifteen and symbol P.
Along with various rare earth elements, this element is extracted commercially from the mineral apatite.
{Phosphorus} [accept "P" before end]