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Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a deep violet liquid at 114 °C (237 °F), and boils to a violet gas at 184 °C (363 °F). The element was discovered by the French chemist Bernard Courtois in 1811…
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iodide used acid stable chlorine also element compounds halogens hydrogen form bromine among solution reaction carbon known thyroid gas may
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Iodine | 123I | synth | 1.00 | infobox |
| Iodine | 124I | synth | 1.00 | infobox |
| Iodine | 125I | synth | 1.00 | infobox |
| Iodine | 127I | 100% | 1.00 | infobox |
| Iodine | 129I | trace | 1.00 | infobox |
| Iodine | 131I | synth | 1.00 | infobox |
| Iodine | 135I | synth | 1.00 | infobox |
| Iodine | Appearance | lustrous metallic gray solid, black/violet liquid, violet gas | 1.00 | infobox |
| Iodine | at T (K) | 260 | 1.00 | infobox |
| Iodine | Atomic number (Z) | 53 | 1.00 | infobox |
| Iodine | Atomic radius | empirical: 140 pm | 1.00 | infobox |
| Iodine | Block | p-block | 1.00 | infobox |
| Iodine | Boiling point | (I2) 457.4 K (184.3 °C, 363.7 °F) | 1.00 | infobox |
| Iodine | Bulk modulus | 7.7 GPa | 1.00 | infobox |
| Iodine | CAS Number | 7553-56-2 | 1.00 | infobox |
| Iodine | Covalent radius | 139±3 pm | 1.00 | infobox |
| Iodine | Critical point | 819 K, 11.7 MPa | 1.00 | infobox |
| Iodine | Crystal structure | base-centered orthorhombic (oS8) | 1.00 | infobox |
| Iodine | Density (at 20° C) | 4.944 g/cm3 | 1.00 | infobox |
| Iodine | Discovery and first isolation | Bernard Courtois (1811) | 1.00 | infobox |
| Iodine | Electrical resistivity | 1.3×107 Ω⋅m (at 0 °C) | 1.00 | infobox |
| Iodine | Electron configuration | [Kr] 4d10 5s2 5p5 | 1.00 | infobox |
| Iodine | Electronegativity | Pauling scale: 2.66 | 1.00 | infobox |
| Iodine | Electrons per shell | 2, 8, 18, 18, 7 | 1.00 | infobox |
| Iodine | Group | group 17 (halogens) | 1.00 | infobox |
| Iodine | Heat of fusion | (I2) 15.52 kJ/mol | 1.00 | infobox |
| Iodine | Heat of vaporisation | (I2) 41.57 kJ/mol | 1.00 | infobox |
| Iodine | Ionisation energies | 1st: 1008.4 kJ/mol | 1.00 | infobox |
| Iodine | Ionisation energies | 2nd: 1845.9 kJ/mol | 1.00 | infobox |
| Iodine | Ionisation energies | 3rd: 3180 kJ/mol | 1.00 | infobox |
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