Iodine (pípè /ˈaɪ.ɵdaɪn/ EYE-o-dyne, /ˈaɪ.ɵdɨn/ EYE-o-dən, tabi /ˈaɪ.ɵdiːn/ EYE-o-deen; lati Gíríkì: [ιώδης iodes] error: {{lang}}: text has italic markup (help) meaning violet (or purple), je apilese kemika to ni ami-idamo I ati noma atomu 53.
Iodine, 53I |
Iodine |
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Pípè | /ˈaɪədaɪn,_ʔdɪn,_ʔdiːn/ (EYE-ə-dyn-,_--din) |
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Ìhànsójú | solid violet-dark gray, lustrous |
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Ìwúwo átọ̀mù Ar, std(I) | 126.90447(3)[1] |
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Iodine ní orí tábìlì àyè |
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Nọ́mbà átọ̀mù (Z) | 53 |
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Ẹgbẹ́ | group 17 (halogens) |
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Àyè | àyè 5 |
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Àdìpọ̀ | Àdìpọ̀-p |
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Ẹ̀ka ẹ́límẹ́ntì | Reactive nonmetal |
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Ìtò ẹ̀lẹ́ktrọ́nù | [Kr] 4d10 5s2 5p5 |
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Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 18, 7 |
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Àwọn ohun ìní ara |
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Ìfarahàn at STP | solid |
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Ìgbà ìyọ́ | 386.85 K (113.7 °C, 236.66 °F) |
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Ígbà ìhó | 457.4 K (184.3 °C, 363.7 °F) |
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Kíki (near r.t.) | 4.933 g/cm3 |
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Triple point | 386.65 K, 12.1 kPa |
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Critical point | 819 K, 11.7 MPa |
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Heat of fusion | (I2) 15.52 kJ/mol |
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Heat of | (I2) 41.57 kJ/mol |
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Molar heat capacity | (I2) 54.44 J/(mol·K) |
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pressure (rhombic)P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
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at T (K) | 260 | 282 | 309 | 342 | 381 | 457 |
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Atomic properties |
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Oxidation states | −1, +1, +3, +4, +5, +6, +7 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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Electronegativity | Pauling scale: 2.66 |
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Atomic radius | empirical: 140 pm |
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Covalent radius | 139±3 pm |
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Van der Waals radius | 198 pm |
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Spectral lines of iodine |
Other properties |
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Natural occurrence | primordial |
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Crystal structure | orthorhombic |
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Thermal conductivity | 0.449 W/(m·K) |
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Electrical resistivity | 1.3×107 Ω·m (at 0 °C) |
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Magnetic ordering | diamagnetic[2] |
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Bulk modulus | 7.7 GPa |
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CAS Number | 7553-56-2 |
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Main isotopes of iodine |
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Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
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123I | syn | 13 h | ε, γ | 0.16 | 123Te | 127I | 100% | 127I is stable with 74 neutrons | 129I | trace | 15.7×106 y | β− | 0.194 | 129Xe | 131I | syn | 8.02070 d | β−, γ | 0.971 | 131Xe |
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Àdàkọ:Category-inline | references |
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