Lanthanum

Lanthanum, ₅₇La
ngoi-kôn
	silvery white;
Kî-pún sin-sit
Miàng, fù-ho	lanthanum, La
ngoi-hìn	silvery white
Lanthanum chhai chû-khì-péu ke vi-chi
	barium ← lanthanum → cerium
ngièn-chṳ́ sì-sú	57
ngièn-chṳ́-liòng (±)	138.90547(7)
ngièn-su lui-phe̍t	lanthanum-hi, sometimes considered a transition metal
Chhu̍k, fûn-khî	n/a, f-block
chû-khì	period 6
thien-chṳ́ phài-lie̍t	[Xe] 5d1 6s2
per shell	2, 8, 18, 18, 9, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1193 K (920 °C, 1688 °F)
pui-tiám	3737 K (3464 °C, 6267 °F)
Me̍t-thu near Sit-vûn	6.162 g·cm−3
	5.94 g·cm−3
Yùng-fa-ngie̍t	6.20 kJ·mol−1
Chîn-fat-ngie̍t	400 kJ·mol−1
Ngie̍t-yùng-liong	27.11 J·mol−1·K−1
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	3, 2, 1 (a strongly basic oxide)
Thien-fu-sin	Pauling scale: 1.10
Thien-lì-nèn	1st: 538.1 kJ·mol−1 ; 2nd: 1067 kJ·mol−1 ; 3rd: 1850.3 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 187 pm
Khiung-ka pan-kang	207±8 pm