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Phosphorus, 15 P File:PhosphComby.jpg waxy white (yellow cut), red (granules centre left, chunk centre right), and violet phosphorus
Phosphorus Pronunciation (Template:Respell ) Appearance colorless, waxy white, yellow, scarlet, red, violet, black Standard atomic weight A r, std (P) Template:Val [1] Phosphorus in the periodic table
Atomic number (Z ) 15 Group group 15 (pnictogens) Period period 3 Block p-block Electron configuration [Ne ] 3s2 3p3 Electrons per shell 2, 8, 5 Physical properties Phase at STP solid Density (near r.t. ) (white) 1.823, (red) ≈ 2.2 – 2.34, (violet) 2.36, (black) 2.69 g/cm3 Triple point (red) 862.7 K, 4367 kPa Heat of fusion (white) 0.66 kJ/mol Heat of vaporization (white) 12.4 kJ/mol Molar heat capacity (white) 23.824 J/(mol·K) Vapor pressure (white)
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
279
307
342
388
453
549
vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
455
489
529
576
635
704
Atomic properties Oxidation states −3 , −2, −1, 0,[2] +1,[3] +2, +3 , +4, +5 (a mildly acidic oxide)Electronegativity Pauling scale: 2.19 Ionization energies Covalent radius 107±3 pm Van der Waals radius 180 pm Spectral lines of phosphorusOther properties Natural occurrence primordial Thermal conductivity (white) 0.236, (black) 12.1 W/(m·K) Magnetic ordering (white,red,violet,black) diamagnetic [4] Bulk modulus (white) 5, (red) 11 GPa CAS Number 7723-14-0 Main isotopes of phosphorus
16x16px Category: Phosphorus | references
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280.5
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References
These references will appear in the article, but this list appears only on this page.
↑ Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)" . Pure and Applied Chemistry . 88 (3): 265–91. doi :10.1515/pac-2015-0305 .
↑ Wang, Yuzhong; Xie, Yaoming; Wei, Pingrong; King, R. Bruce; Schaefer, Iii; Schleyer, Paul v. R.; Robinson, Gregory H. (2008). "Carbene-Stabilized Diphosphorus". Journal of the American Chemical Society . 130 (45): 14970–1. doi :10.1021/ja807828t . PMID 18937460 .
↑ Ellis, Bobby D.; MacDonald, Charles L. B. (2006). "Phosphorus(I) Iodide: A Versatile Metathesis Reagent for the Synthesis of Low Oxidation State Phosphorus Compounds". Inorganic Chemistry . 45 (17): 6864–74. doi :10.1021/ic060186o . PMID 16903744 .
↑ Magnetic susceptibility of the elements and inorganic compounds , in Template:RubberBible86th
↑ webelements
↑ Ellis, Bobby D.; MacDonald, Charles L. B. (2006). "Phosphorus(I) Iodide: A Versatile Metathesis Reagent for the Synthesis of Low Oxidation State Phosphorus Compounds". Inorganic Chemistry . 45 (17): 6864–74. doi :10.1021/ic060186o . PMID 16903744 .
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