Whatever else it is â the most played record on radio ever, etc â 'Stairway to Heaven' is the slow-building prog-rock anthem to end them all. Let's not forget that Led Zeppelin are the band who, more than any other, declared war on the 45 rpm single by refusing to release an edit of 'Whole Lotta Love'.
Phosphorus can form a diatomic molecule P 2 with a triple bond, like N 2, but only at higher temperatures and in the gas phase. It easily forms a tetrahedral P 4 molecule that exists in the gas phase and also as a waxy solid and viscous liquid, melting at 44.1Â°C and boiling at 280Â°C.n burning, it produces P 2 O 5 smoke, as white phosphorus does. White phosphorus usually has a yellow tinge due to small amounts of red phosphorus, so it is sometimes called yellow phosphorus. The red and yellow forms are good examples of allotropes, like diamond and graphite.
Overview. Phosphorus is found in Group 15 (VA) of the periodic table. The periodic table is a chart that that shows how chemical elements are related to each other. Phosphorus is part of the nitrogen family along with nitrogen, arsenic, antimony, and bismuth. Phosphorus was first discovered in 1669 by German physician Hennig Brand (ca. 1630-92). Brand is somewhat famous in chemistry.