Iodínì

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Iodine
53I
Br

I

At
telluriumiodinexenon
Ìhànsójú
solid violet-dark gray, lustrous
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà iodine, I, 53
Ẹ̀ka ẹ́límẹ̀nti halogen
Ẹgbẹ́, àsìkò, àdìpò 175, p
Ìwúwo átọ́mù 126.90447
Ìtòléra ẹ̀lẹ́ktrónì [Kr] 4d10 5s2 5p5
2, 8, 18, 18, 7
Physical properties
Phase solid
Density (near r.t.) 4.933 g·cm−3
Melting point 386.85 K, 113.7 °C, 236.66 °F
Boiling point 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
Molar heat capacity (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
Iodine has a orthorhombic crystal structure
Magnetic ordering diamagnetic[1]
Electrical resistivity (0 °C) 1.3×107Ω·m
Thermal conductivity 0.449 W·m−1·K−1
Bulk modulus 7.7 GPa
CAS registry number 7553-56-2
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù iodine
iso NA half-life DM DE (MeV) DP
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
· r

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.


Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81th edition, CRC press.