Tién

Tién (碘) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì I, ngièn-chṳ́ su-muk he 53.

Tién,  ₅₃I

ngoi-kôn
lustrous metallic gray, violet as a gas
Kî-pún sin-sit
Miàng, fù-ho	Tién, I
Yîn-ngî	iodine
ngoi-hìn	lustrous metallic gray, violet as a gas
Tién chhai chû-khì-péu ke vi-chi
Br ↑ I ↓ At tellurium ← Tién → xenon
ngièn-chṳ́ sì-sú	53
ngièn-chṳ́-liòng (±)	126.90447(3)
ngièn-su lui-phe̍t	sûng-ngièn-chṳ́ fî-kîm-su̍k
Chhu̍k, fûn-khî	17 chhu̍k, p-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d10 5s2 5p5
per shell	2, 8, 18, 18, 7
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	386.85 K ​(113.7 °C, ​236.66 °F)
pui-tiám	457.4 K ​(184.3 °C, ​363.7 °F)
Me̍t-thu near Sit-vûn	4.933 g·cm−3
Sâm-siong-tiám	386.65 K, ​12.1 kPa
lìm-kie-tiám	819 K, 11.7 MPa
Yùng-fa-ngie̍t	(I2) 15.52 kJ·mol−1
Chîn-fat-ngie̍t	(I2) 41.57 kJ·mol−1
Ngie̍t-yùng-liong	(I2) 54.44 J·mol−1·K−1
chîn-hi-ap (rhombic) P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 260 282 309 342 381 457
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	7, 6, 5, 4, 3, 1, −1 ​(a strongly acidic oxide)
Thien-fu-sin	Pauling scale: 2.66
Thien-lì-nèn	1st: 1008.4 kJ·mol−1 2nd: 1845.9 kJ·mol−1 3rd: 3180 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 140 pm
Khiung-ka pan-kang	139±3 pm
Van der Waals pan-kang	198 pm
Miscellanea
Chîn-thí keu-chho	​orthorhombic
Ngie̍t-chhòn-thô-li̍t	0.449 W·m−1·K−1
Thien-chú-li̍t	1.3×107 Ω·m (at 0 °C)
Chhṳ̀-sin	diamagnetic
Bulk modulus	7.7 GPa
CAS Registry Number	7553-56-2
Le̍k-sú
Hoat-kiàn kap siōng chá ê tông-ūi-sò͘	Bernard Courtois (1811)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Tién ke thùng-vi-su
iso NA half-life DM DE (MeV) 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 129I trace 1.57×107 y 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