• Latin name:
  Phosphorus
• English name:
  Phosphorus
• Year discovered:
  1669
• Discovered by:
  Hennig Brand
• Country of Discovery:
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• Cost per 100 grams:
  14 USD
• CAS Number:
  CAS7723-14-0
• Electron shell:
  K2-L8-M5-N0-O0-P0-Q0-R0

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 due to its high reactivity, phosphorus is never found as a free element on Earth. Instead phosphorus-containing minerals are almost always present in their maximally oxidised state, as inorganic phosphate rocks.

• Atomic number:
  15
• Atomic weight (Relative atomic mass):
  30.9737619977018 (g/mol)
• Density:
  1.823 (g/cm³)
• Melting point:
  44.15°C = 111.47°F = 317.30K
• Boiling point:
  277.0°C = 530.60°F = 550.15K
• Valence electrons:
  3, 5
• Period:
  3
• Group:
  VA
• Block:
  p - block
• Emission spectrum:
  

• Phase:
  Solid

  
• Fusion heat:
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• Specific heat:
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• Thermal expansion:
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• Vaporization heat:
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• Electron configuration:
  [Ne] 3s2 3p3 = 1s2 2s2 2p6 3s2 3p3
Oxidation states:

• 0
• -1
• -2
• -3
• -
• -
• +1
• +2
• +3
• +4
• +5
• -
• -
• -
• -
• Ion charge:
  P^3-
• The ionization potential of an atom:
  10.487 (eV)
• Atomic radius:
  98 (pm)
• Covalent radius:
  109 (pm)
• Van der Waals radius:
  180 (pm)

• Electrical conductivity:
  10000000.0 (S/m)
• Electrical type:
  Conductor
• Magnetic type:
  Diamagnetism
• Volume magnetic susceptibility:
  -2.06 ⋅ 10^-5
• Mass magnetic susceptibility:
  -1.13 ⋅ 10^-8
• Molar magnetic susceptibility:
  -3.5 ⋅ 10^-10 (m³/mol)
• Resistivity:
  1 ⋅ 10^-7 (Ω · m)
• Superconducting point:
  ----

• Debye temperature:
  ----

• Colour:
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• CAS Number:
  CAS7723-14-0
• CID Number:
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• RTEC Number:
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• Brinell hardness:
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• Mohs hardness:
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• Vickers hardness:
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• Bulk modulus:
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• Young's modulus:
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• Liquid density:
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• Molar volume:
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• Poisson's ratio:
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• Shear modulus:
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• Speed of sound transmission:
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• Refractive index:
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• Thermal conductivity:
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• Electronegativity:
  2.19
• Valence electrons:
  3, 5
• Electron affinity:
  72.037 kJ/mole

• Radioactive:
  No
• Half life:
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• Lifetime:
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• Neutron cross section, barn:
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• Universe contains "Phosphorus" at the rate of
  0.0007%
• Sun contains "Phosphorus" at the rate of
  0.0007%
• Oceans contain "Phosphorus" at the rate of
  7 ⋅ 10^-4%
• Human body contains "Phosphorus" at the rate of
  1.11291986404955%
• The Earth's crust consists of "Phosphorus" at the rate of
  0.105%
• Meteorites consist of "Phosphorus" at the rate of
  0.11%