Terbium

Terbium (Hon-ngî: 鋱 tè) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Tb, ngièn-chṳ́ su-muk he 65.

Terbium,  ₆₅Tb

ngoi-kôn
silvery white
Kî-pún sin-sit
Miàng, fù-ho	Terbium, Tb
ngoi-hìn	silvery white
Terbium chhai chû-khì-péu ke vi-chi
– ↑ Tb ↓ Bk gadolinium ← Terbium → dysprosium
ngièn-chṳ́ sì-sú	65
ngièn-chṳ́-liòng (±)	158.92535(2)[1]
ngièn-su lui-phe̍t	lanthanum-hi
Chhu̍k, fûn-khî	n/a, f-block
chû-khì	period 6
thien-chṳ́ phài-lie̍t	[Xe] 4f9 6s2
per shell	2, 8, 18, 27, 8, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1629 K ​(1356 °C, ​2473 °F)
pui-tiám	3396 K ​(3123 °C, ​5653 °F)
Me̍t-thu near Sit-vûn	8.23 g·cm−3
7.65 g·cm−3
Yùng-fa-ngie̍t	10.15 kJ·mol−1
Chîn-fat-ngie̍t	391 kJ·mol−1
Ngie̍t-yùng-liong	28.91 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 1789 1979 (2201) (2505) (2913) (3491)
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	4, 3, 2, 1 ​(a weakly basic oxide)
Thien-fu-sin	Pauling scale: 1.2 (?)
Thien-lì-nèn	1st: 565.8 kJ·mol−1 2nd: 1110 kJ·mol−1 3rd: 2114 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 177 pm
Khiung-ka pan-kang	194±5 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal close-packed (hcp)
Sâng-suk thin rod	2620 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	at r.t. α, poly: 10.3 µm·m−1·K−1
Ngie̍t-chhòn-thô-li̍t	11.1 W·m−1·K−1
Thien-chú-li̍t	α, poly: 1.150 µΩ·m (at r.t.)
Chhṳ̀-sin	paramagnetic at 300 K
Young's modulus	α form: 55.7 GPa
Shear modulus	α form: 22.1 GPa
Bulk modulus	α form: 38.7 GPa
Poisson ratio	α form: 0.261
Vickers hardness	450–865 MPa
Brinell hardness	675–1200 MPa
CAS Registry Number	7440-27-9
Le̍k-sú
Hí-miàng	after Ytterby (Sweden), where it was mined
Hoat-kiàn kap siōng chá ê tông-ūi-sò͘	Carl Gustaf Mosander (1842)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Terbium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 157Tb syn 71 y ε 0.060 157Gd 158Tb syn 180 y ε 1.220 158Gd β− 0.937 158Dy 159Tb 100% – (SF) <74.878
Decay modes in parentheses are predicted, but have not yet been observed