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Phosphorus at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Phosphorus
Symbol: P
Atomic Number: 15
Atomic Mass: 30.97376 amu
Melting Point: 44.1 °C (317.25 K, 111.38 °F)
Boiling Point: 280.0 °C (553.15 K, 536.0 °F)
Number of Protons/Electrons: 15
Number of Neutrons: 16
Classification: Non-metal
Crystal Structure: Monoclinic
Density @ 293 K: 1.82 g/cm3
Color: white

Atomic Structure

[Bohr Model of Phosphorus]  
Number of Energy Levels: 3

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 5


Isotope Half Life
P-3214.28 days
P-3324.3 days


Date of Discovery: 1669
Discoverer: Hennig Brand
Name Origin: From the Greek words phs (light) and phoros (bearer)
Uses: fertilizers, detergents
Obtained From: phosphate rock

Related Links

Note: The external links below are not a part of this site and their content is not the responsibility of this site
  1. Healthworld Online - Phosphorus
    • Contains an "Introduction to Tungsten", among other things
If you know of any other links for Phosphorus, please let me know

MLA Format for Citing This Page

Bentor, Yinon. Chemical Element.com - Phosphorus. <http://www.chemicalelements.com/elements/p.html>.

For more information about citing online sources, please visit the MLA's Website.

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