Lutetium

Lutetium,  ₇₁Lu

ngoi-kôn
silvery white
Kî-pún sin-sit
Miàng, fù-ho	Lutetium, Lu
ngoi-hìn	silvery white
Lutetium chhai chû-khì-péu ke vi-chi
Y ↑ Lu ↓ Lr ytterbium ← Lutetium → hafnium
ngièn-chṳ́ sì-sú	71
ngièn-chṳ́-liòng (±)	174.9668(1)
ngièn-su lui-phe̍t	lanthanum-hi, sometimes considered a transition metal
Chhu̍k, fûn-khî	n/a chhu̍k, d-block
chû-khì	period 6
thien-chṳ́ phài-lie̍t	[Xe] 6s2 4f14 5d1
per shell	2, 8, 18, 32, 9, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1925 K ​(1652 °C, ​3006 °F)
pui-tiám	3675 K ​(3402 °C, ​6156 °F)
Me̍t-thu near Sit-vûn	9.841 g·cm−3
9.3 g·cm−3
Yùng-fa-ngie̍t	ca. 22 kJ·mol−1
Chîn-fat-ngie̍t	414 kJ·mol−1
Ngie̍t-yùng-liong	26.86 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 1906 2103 2346 (2653) (3072) (3663)
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	3, 2, 1 ​(a weakly basic oxide)
Thien-fu-sin	Pauling scale: 1.27
Thien-lì-nèn	1st: 523.5 kJ·mol−1 2nd: 1340 kJ·mol−1 3rd: 2022.3 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 174 pm
Khiung-ka pan-kang	187±8 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal close-packed (hcp)
Ngie̍t-phàng-chong	poly: 9.9 µm·m−1·K−1 (at r.t.)
Ngie̍t-chhòn-thô-li̍t	16.4 W·m−1·K−1
Thien-chú-li̍t	poly: 582 nΩ·m (at r.t.)
Chhṳ̀-sin	paramagnetic
Young's modulus	68.6 GPa
Shear modulus	27.2 GPa
Bulk modulus	47.6 GPa
Poisson ratio	0.261
Vickers hardness	755–1160 MPa
Brinell hardness	890–1300 MPa
CAS Registry Number	7439-94-3
Le̍k-sú
Hí-miàng	after Lutetia, Latin for: Paris, in the Roman era
Fat-hien	Georges Urbain and Carl Auer von Welsbach (1906)
First isolation	Carl Auer von Welsbach (1906)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Lutetium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 173Lu syn 1.37 y ε 0.671 173Yb 174Lu syn 3.31 y ε 1.374 174Yb 175Lu 97.41% – (α) 1.6197 171Tm 176Lu 2.59% 3.78×1010 y β− 1.193 176Hf
Decay modes in parentheses are predicted, but have not yet been observed

Lutetium (Hon-ngî: 鑥 lǔ, 鎦 liú fe̍t-chá 鏴 lù) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Lu, ngièn-chṳ́ su-muk he 71.