Phosphorus

Statistics:

• Name: Phosphorus
• Symbol: P
• Classification: Non-Metal
• Atomic Number: 15
• Atomic Mass: 30.973762 g/mol
• Density: 1.82 g/cm³
• Melting: 44°C
• Boiling: 280°C
• Protons & Electrons:15
• Neutrons:16
• Discovered: 1669
• Discovered By: Brand
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 5

Isotopes:

Isotope: Half-life

• ³¹P: stable
• ³²P: 14.262 days
• ³³P: 25.34 days

Brief Summary

Phosphorus is a Non-Metal with the symbol 'P' and contains 15 Protons & Electrons with 16 neutrons in the nucleus of the atom. Phosphorus has an atomic mass of 30.973762 g/mol and, at a temperature of 20°C, has a density of 1.82 g/cm³. It will melt at a temperature of 44°C and boil at 280°C.

Phosphorus was discovered by Brand in 1669 and is named 'Phosphorus' The Greek words "phôs" meaning "light" and "phoros" meaning "bearer".

Some common usages for Phosphorus: fertilizers and detergents.

Definitions and Notes

Density listed is at a temperature of 20°C.

Isotopes are forms of an element who have the same atomic number but different mass because they contain different number of neutrons.

Half-life is the time required for a quantity of a subject to fall to half of its current quantity.

MLA Citing Format

Phosphorus :: P :: 15 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/phosphorus.html>.