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| Ìfarahàn |
solid violet-dark gray, lustrous
 |
| Àwọn ìní àníkárí |
| Orúkọ, àmì-ìdámọ̀, nọ́mbà |
iodine, I, 53 |
| Ẹ̀ka apilẹ̀sẹ̀ |
halogen |
| Àdìpọ̀, ìgbà, block |
17, 5, p |
| Ìwúwo átọ́mù |
126.90447 g·mol−1 |
| Ìtòjọ ẹ̀lẹ́ktrónì |
[Kr] 4d10 5s2 5p5 |
| Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan |
2, 8, 18, 18, 7 (Image) |
| Àwọn ìní aláfójúrí |
| Phase |
solid |
| Kíki (tó súnmọ́ r.t.) |
4.933 g·cm−3 |
| ojúàmì ìyọ́ |
386.85 K, 113.7 °C, 236.66 °F |
| ajúàmì ìhó |
457.4 K, 184.3 °C, 363.7 °F |
| Triple point |
386.65 K (113°C), 12.1 kPa |
| Critical point |
819 K, 11.7 MPa |
| Heat of fusion |
(I2) 15.52 kJ·mol−1 |
| Heat of vaporization |
(I2) 41.57 kJ·mol−1 |
| Specific heat capacity |
(25 °C) (I2) 54.44 J·mol−1·K−1 |
| Vapor pressure (rhombic) |
| P/Pa |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T/K |
260 |
282 |
309 |
342 |
381 |
457 |
|
| Atomic properties |
| Oxidation states |
7, 5, 3, 1, -1
(strongly acidic oxide) |
| Electronegativity |
2.66 (Pauling scale) |
| Ionization energies |
1st: 1008.4 kJ·mol−1 |
| 2nd: 1845.9 kJ·mol−1 |
| 3rd: 3180 kJ·mol−1 |
| Atomic radius |
140 pm |
| Covalent radius |
139±3 pm |
| Van der Waals radius |
198 pm |
| Miscellanea |
| Crystal structure |
orthorhombic |
| Magnetic ordering |
diamagnetic[1] |
| Electrical resistivity |
(0 °C) 1.3×107Ω·m |
| Thermal conductivity |
(300 K) 0.449 W·m−1·K−1 |
| Bulk modulus |
7.7 GPa |
| CAS registry number |
7553-56-2 |
| Most stable isotopes |
| Main article: Isotopes of iodine |
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Iodine (pípè /ˈaɪ.ɵdaɪn/ EYE-o-dyne, /ˈaɪ.ɵdɨn/ EYE-o-dən, tabi /ˈaɪ.ɵdiːn/ EYE-o-deen; lati Gíríkì: ιώδης iodes meaning violet (or purple), je apilese kemika to ni ami-idamo I ati noma atomu 53.
