Yèn

Yèn (鉛) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Pb, ngièn-chṳ́ su-muk he 82. Yèn he yit-tsúng ngiôn-ngiôn ke tshûng Kîm-su̍k, yû thu̍k-sin. Yèn he yit-tsúng yû yèn-tshûn-sin ke ngio̍k kîm-su̍k, Yèn ke pún-set he tshiâng-tshiâng pha̍k-set ke, tì khûng-hi chûng yèn ke péu-mien tsṳ̂n-khuai phî yit-tshèn am fôi-set vu̍t-tsṳt fu̍k-koi. Yèn pûn-ngìn yung-tsok kien-tsuk tshòi-liau, yung-tshai yèn-sôn thien-tshṳ̀ chûng, hon-siak tén-tén.

Yèn,  ₈₂Pb

ngoi-kôn
metallic gray
Kî-pún sin-sit
Miàng, fù-ho	Yèn, Pb
Yîn-ngî	lead
ngoi-hìn	metallic gray
Yèn chhai chû-khì-péu ke vi-chi
Sn ↑ Pb ↓ Fl thallium ← Yèn → bismuth
ngièn-chṳ́ sì-sú	82
ngièn-chṳ́-liòng (±)	207.2(1)
ngièn-su lui-phe̍t	heu-ko-thu kîm-su̍k
Chhu̍k, fûn-khî	14 chhu̍k, p-block
chû-khì	period 6
thien-chṳ́ phài-lie̍t	[Xe] 4f14 5d10 6s2 6p2
per shell	2, 8, 18, 32, 18, 4
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	600.61 K ​(327.46 °C, ​621.43 °F)
pui-tiám	2022 K ​(1749 °C, ​3180 °F)
Me̍t-thu near Sit-vûn	11.34 g·cm−3
10.66 g·cm−3
Yùng-fa-ngie̍t	4.77 kJ·mol−1
Chîn-fat-ngie̍t	179.5 kJ·mol−1
Ngie̍t-yùng-liong	26.650 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 978 1088 1229 1412 1660 2027
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	4, 3, 2, 1, −1, −2, −4 ​(an amphoteric oxide)
Thien-fu-sin	Pauling scale: 1.87
Thien-lì-nèn	1st: 715.6 kJ·mol−1 2nd: 1450.5 kJ·mol−1 3rd: 3081.5 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 175 pm
Khiung-ka pan-kang	146±5 pm
Van der Waals pan-kang	202 pm
Miscellanea
Chîn-thí keu-chho	​face-centered cubic (fcc)
Sâng-suk thin rod	1190 m·s−1 (at r.t.) (annealed)
Ngie̍t-phàng-chong	28.9 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	35.3 W·m−1·K−1
Thien-chú-li̍t	208 nΩ·m (at 20 °C)
Chhṳ̀-sin	diamagnetic
Young's modulus	16 GPa
Shear modulus	5.6 GPa
Bulk modulus	46 GPa
Poisson ratio	0.44
Mohs hardness	1.5
Brinell hardness	38–50 MPa
CAS Registry Number	7439-92-1
Le̍k-sú
Fat-hien	Middle Easterns (7000 BCE)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Yèn ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 204Pb 1.4% >1.4×1017 y (α) 1.972 200Hg 205Pb syn 1.53×107 y ε 0.051 205Tl 206Pb 24.1% – (α) 1.1366 202Hg 207Pb 22.1% – (α) 0.3915 203Hg 208Pb 52.4% >2×1019 y (α) 0.5188 204Hg 210Pb trace 22.3 y α 3.792 206Hg β− 0.064 210Bi
Decay modes in parentheses are predicted, but have not yet been observed