Iân

Iân,  ₈₂Pb

Ki-pún sèng-chit
Miâ, hû-hō	Iân, Pb
Eng-bûn	lead
Phian-miâ	o͘-iân
Gōa-hêng	metallic gray
Iân tī chiu-kî-piáu lāi ê ūi-tì
Sn ↑ Pb ↓ Fl thallium ← Iân → bismuth
Goân-chú-hoan	82
Goân-chú-liōng (±)	207.2(1)
Goân-sò͘ lūi-pia̍t	Āu-kòe-tō͘ kim-sio̍k
Cho̍k, hun-khu	14·6·p
Chiu-kî	tē 6 chiu-kî
Tiān-chú pâi-lia̍t	[Xe] 4f14 5d10 6s2 6p2
per shell	2, 8, 18, 32, 18, 4
Bu̍t-lí sèng-chit
Siòng	kò͘-thé
Iûⁿ-tiám	600.61 K ​(327.46 °C, ​621.43 °F)
Hut-tiám	2022 K ​(1749 °C, ​3180 °F)
Bi̍t-tō͘  (sek-un)	11.34 g·cm−3
10.66 g·cm−3
Iûⁿ-hoà-jia̍t	4.77 kJ·mol−1
Cheng-hoat-jia̍t	179.5 kJ·mol−1
Jia̍t-iông-liōng	26.650 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 978 1088 1229 1412 1660 2027
Goân-chú sèng-chit
Sng-hòa-sò͘	4, 3, 2, 1, −1, −2, −4 ​(an amphoteric oxide)
Tiān-hū-tō͘	Pauling scale: 1.87
Tiān-lī-lêng	1st: 715.6 kJ·mol−1 2nd: 1450.5 kJ·mol−1 3rd: 3081.5 kJ·mol−1
Goân-chú pòaⁿ-kèng	empirical: 175 pm
Kiōng-kè pòaⁿ-kèng	146±5 pm
Van der Waals pòaⁿ-kèng	202 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​face-centered cubic (fcc)
Siaⁿ-sok (sòe kùn-á)	1190 m·s−1 (at r.t.) (annealed)
Jia̍t-phòng-tiòng	28.9 µm·m−1·K−1 (at 25 °C)
Jia̍t-thoân-tō-lu̍t	35.3 W·m−1·K−1
Tiān-chó͘-lu̍t	208 nΩ·m (at 20 °C)
Chû-sèng	diamagnetic
Young hē-sò͘	16 GPa
Shear hē-sò͘	5.6 GPa
Bulk hē-sò͘	46 GPa
Poisson pí	0.44
Mohs ngē-tō͘	1.5
Brinell ngē-tō͘	38–50 MPa
CAS teng-kì pian-hō	7439-92-1
Le̍k-sú
Hoat-hiān	Middle Easterns (7000 BCE)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: Iân ê tông-ūi-sò͘
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

Iân (鉛), ia̍h o͘-iân, sī chi̍t khoán hoà-ha̍k goân-sò͘, Latin-bûn hō plumbum, Eng-gí hō lead, hû-hō sī Pb, goân-chú-hoan 82, sio̍k thòaⁿ-sò͘ cho̍k, sī chi̍t khoán kim-sio̍k.