Tién, 53Ingoi-kôn |
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lustrous metallic gray, violet as a gas
![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Sample_of_iodine.jpg/250px-Sample_of_iodine.jpg) |
Kî-pún sin-sit |
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Miàng, fù-ho |
Tién, I |
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Yîn-ngî |
iodine |
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ngoi-hìn |
lustrous metallic gray, violet as a gas |
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Tién chhai chû-khì-péu ke vi-chi |
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|
ngièn-chṳ́ sì-sú |
53 |
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ngièn-chṳ́-liòng (±) |
126.90447(3)[1] |
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ngièn-su lui-phe̍t |
sûng-ngièn-chṳ́ fî-kîm-su̍k |
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Chhu̍k, fûn-khî |
17 chhu̍k, p-block |
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chû-khì |
period 5 |
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thien-chṳ́ phài-lie̍t |
[Kr] 4d10 5s2 5p5 |
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per shell |
2, 8, 18, 18, 7 |
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vu̍t-lî sin-chṳt |
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Siông |
ku-thí |
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yùng-tiám |
386.85 K (113.7 °C, 236.66 °F) |
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pui-tiám |
457.4 K (184.3 °C, 363.7 °F) |
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Me̍t-thu near Sit-vûn |
4.933 g·cm−3 |
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Sâm-siong-tiám |
386.65 K, 12.1 kPa |
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lìm-kie-tiám |
819 K, 11.7 MPa |
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Yùng-fa-ngie̍t |
(I2) 15.52 kJ·mol−1 |
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Chîn-fat-ngie̍t |
(I2) 41.57 kJ·mol−1 |
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Ngie̍t-yùng-liong |
(I2) 54.44 J·mol−1·K−1 |
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chîn-hi-ap (rhombic)
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
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chhai T (K)
|
260
|
282
|
309
|
342
|
381
|
457
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Ngièn-chṳ́ sin-chṳt |
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Yông-fa-su |
7, 6, 5, 4, 3, 1, −1 (a strongly acidic oxide) |
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Thien-fu-sin |
Pauling scale: 2.66 |
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Thien-lì-nèn |
1st: 1008.4 kJ·mol−1 2nd: 1845.9 kJ·mol−1 3rd: 3180 kJ·mol−1 |
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Ngièn-chṳ́ pan-kang |
empirical: 140 pm |
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Khiung-ka pan-kang |
139±3 pm |
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Van der Waals pan-kang |
198 pm |
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Miscellanea |
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Chîn-thí keu-chho |
orthorhombic |
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Ngie̍t-chhòn-thô-li̍t |
0.449 W·m−1·K−1 |
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Thien-chú-li̍t |
1.3×107 Ω·m (at 0 °C) |
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Chhṳ̀-sin |
diamagnetic[2] |
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Bulk modulus |
7.7 GPa |
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CAS Registry Number |
7553-56-2 |
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Le̍k-sú |
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Hoat-kiàn kap siōng chá ê tông-ūi-sò͘ |
Bernard Courtois (1811) |
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Chui vún-thin ke thùng-vi-su |
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Chú vùn-chông: Tién ke thùng-vi-su |
iso
|
NA
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half-life
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DM
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DE (MeV)
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DP
|
123I
|
syn
|
13 h
|
ε, γ
|
0.16
|
123Te
|
124I
|
syn
|
4.176 d
|
ε
|
–
|
124Te
|
125I
|
syn
|
59.40 d
|
ε
|
–
|
125Te
|
127I
|
100%
|
–
|
(SF)
|
<29.961
|
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129I
|
trace
|
1.57×107 y
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β−
|
0.194
|
129Xe
|
131I
|
syn
|
8.02070 d
|
β−, γ
|
0.971
|
131Xe
|
135I
|
syn
|
6.57 h
|
β−
|
–
|
135Xe
| |
Decay modes in parentheses are predicted, but have not yet been observed |
Tién (碘), fe̍t-chá ham-cho vok-su (沃素), he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì I, ngièn-chṳ́ su-muk he 53.