Web Results

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

Element Phosphorus (P), Group 15, Atomic Number 15, p-block, Mass 30.974. Sources, facts, uses ... Discovered by, Hennig Brandt. Origin of the name, The ...

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 ...

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.

blogs.ei.columbia.edu/2013/04/01/phosphorus-essential-to-life-are-we-running-out

Apr 1, 2013 ... Phosphorus, the 11th most common element on earth, is fundamental to ... Ninety percent of the phosphate rock reserves are located in just five ...

socratic.org/questions/what-is-the-largest-source-of-phosphorus-on-earth

May 17, 2016 ... The largest source of phosphorus on earth is found in sediments and rocks.

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 ...