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en.wikipedia.org/wiki/Phosphorus

Phosphorus is a chemical element with symbol P and atomic number 15. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth.

www.ducksters.com/science/chemistry/phosphorus.php

Phosphorus is a highly reactive element and, as a result, is never found on Earth as a free element. Elemental phosphorus comes in various allotropes (different ...

www.livescience.com/28932-phosphorus.html

Jan 5, 2015 ... Hennig Brand, a German, discovered phosphorus quite by accident in 1669 ... Earth may be approaching "peak phosphorus," after which the ...

www.rsc.org/periodic-table/element/15/phosphorus

Discovery date, 1669. Discovered by, Hennig Brandt. Origin of the name, The name is derived from the Greek 'phosphoros', meaning bringer of light. Allotropes  ...

www.sciencelearn.org.nz/resources/961-the-phosphorus-cycle

Jul 30, 2013 ... Phosphorus is a chemical element found on Earth in numerous compound forms, such as the phosphate ion (PO43-), located in water, soil and ...

study.com/academy/lesson/where-is-phosphorus-found-how-is-it-obtained.html

Discovered in 1600s, phosphorus is such an important element in our world, ... much in the next 20-30 years that it will no longer be found as a source on earth.

www.lenntech.com/phosphorus-cycle.htm

Phosphorus can be found on earth in water, soil and sediments. Unlike the compounds of other matter cycles phosphorus cannot be found in air in the gaseous ...

www.sciencedaily.com/terms/phosphorus.htm

Phosphorus is commonly found in inorganic phosphate rocks and in all living cells. The most important commercial use of phosphorus is in the production of ...

www.chemicool.com/elements/phosphorus.html

Hennig Brand discovered phosphorus in 1669, in Hamburg, Germany, ... Abundance earth's crust: 1,050 parts per million by weight, 730 parts per million by ...