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Phosphorus is a chemical element; it has symbol P and atomic number 15. All elemental forms of phosphorus are highly reactive and are therefore never found in nature. Elemental phosphorus can be prepared artificially, the two most common allotropes being white phosphorus and red phosphorus. With .mw-parser-output…
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phosphate white also used compounds production rock form red acid known use phosphoric states produced forms oxidation matches process calcium
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Phosphorus | 31P | 100% | 1.00 | infobox |
| Phosphorus | 32P | trace | 1.00 | infobox |
| Phosphorus | 33P | trace | 1.00 | infobox |
| Phosphorus | Allotropes | white, red, violet, black and others (see Allotropes of phosphorus) | 1.00 | infobox |
| Phosphorus | Appearance | white, red and violet are waxy, black is metallic-looking | 1.00 | infobox |
| Phosphorus | at T (K) | 279 | 1.00 | infobox |
| Phosphorus | at T (K) | 455 | 1.00 | infobox |
| Phosphorus | Atomic number (Z) | 15 | 1.00 | infobox |
| Phosphorus | Block | p-block | 1.00 | infobox |
| Phosphorus | Boiling point | white: 553.7 K (280.5 °C, 536.9 °F) | 1.00 | infobox |
| Phosphorus | Bulk modulus | white: 5 GPa red: 11 GPa | 1.00 | infobox |
| Phosphorus | CAS Number | 7723-14-0 (red) 12185-10-3 (white) | 1.00 | infobox |
| Phosphorus | Covalent radius | 107±3 pm | 1.00 | infobox |
| Phosphorus | Crystal structure | α-white: body-centred cubic (bcc) (cI232) | 1.00 | infobox |
| Phosphorus | Crystal structure | black: orthorhombic (oS8) | 1.00 | infobox |
| Phosphorus | Density (near r.t.) | white: 1.823 g/cm3 red: ≈2.2–2.34 g/cm3 violet: 2.36 g/cm3 black: 2.69 g/cm3 | 1.00 | infobox |
| Phosphorus | Discovery | Hennig Brand (1669) | 1.00 | infobox |
| Phosphorus | Electron configuration | [Ne] 3s2 3p3 | 1.00 | infobox |
| Phosphorus | Electronegativity | Pauling scale: 2.19 | 1.00 | infobox |
| Phosphorus | Electrons per shell | 2, 8, 5 | 1.00 | infobox |
| Phosphorus | Group | group 15 (pnictogens) | 1.00 | infobox |
| Phosphorus | Heat of fusion | white: 0.66 kJ/mol | 1.00 | infobox |
| Phosphorus | Heat of vaporisation | white: 51.9 kJ/mol | 1.00 | infobox |
| Phosphorus | in the Earth's crust | 5.2 (silicon = 100) | 1.00 | infobox |
| Phosphorus | Ionisation energies | 1st: 1011.8 kJ/mol | 1.00 | infobox |
| Phosphorus | Ionisation energies | 2nd: 1907 kJ/mol | 1.00 | infobox |
| Phosphorus | Ionisation energies | 3rd: 2914.1 kJ/mol | 1.00 | infobox |
| Phosphorus | Ionisation energies | (more) | 1.00 | infobox |
| Phosphorus | Lattice constant | a = 1.869 nm (at 20 °C) | 1.00 | infobox |
| Phosphorus | Lattice constants | a = 0.33137 nm b = 1.0477 nm c = 0.43755 nm (at 20 °C) | 1.00 | infobox |
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