Terbium

Terbium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 65, hoà-ha̍k hû-hō sī Tb.

Terbium,  ₆₅Tb

Ki-pún sèng-chit
Miâ, hû-hō	terbium, Tb
Gōa-hêng	silvery white
Terbium tī chiu-kî-piáu lāi ê ūi-tì
– ↑ Tb ↓ Bk gadolinium ← terbium → dysprosium
Goân-chú-hoan	65
Goân-chú-liōng (±)	158.92535(2)
Goân-sò͘ lūi-pia̍t	lanthanum-hē
Cho̍k, hun-khu	n/a, f khu
Chiu-kî	tē 6 chiu-kî
Tiān-chú pâi-lia̍t	[Xe] 4f9 6s2
per shell	2, 8, 18, 27, 8, 2
Bu̍t-lí sèng-chit
Siòng	solid
Iûⁿ-tiám	1629 K ​(1356 °C, ​2473 °F)
Hut-tiám	3396 K ​(3123 °C, ​5653 °F)
Bi̍t-tō͘  (sek-un)	8.23 g·cm−3
7.65 g·cm−3
Iûⁿ-hoà-jia̍t	10.15 kJ·mol−1
Cheng-hoat-jia̍t	391 kJ·mol−1
Jia̍t-iông-liōng	28.91 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 1789 1979 (2201) (2505) (2913) (3491)
Goân-chú sèng-chit
Sng-hòa-sò͘	4, 3, 2, 1 ​(a weakly basic oxide)
Tiān-hū-tō͘	Pauling scale: 1.2 (?)
Tiān-lī-lêng	1st: 565.8 kJ·mol−1 2nd: 1110 kJ·mol−1 3rd: 2114 kJ·mol−1
Goân-chú pòaⁿ-kèng	empirical: 177 pm
Kiōng-kè pòaⁿ-kèng	194±5 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​hexagonal close-packed (hcp)
Siaⁿ-sok (sòe kùn-á)	2620 m·s−1 (at 20 °C)
Jia̍t-phòng-tiòng	at r.t. α, poly: 10.3 µm·m−1·K−1
Jia̍t-thoân-tō-lu̍t	11.1 W·m−1·K−1
Tiān-chó͘-lu̍t	α, poly: 1.150 µΩ·m (at r.t.)
Chû-sèng	paramagnetic at 300 K
Young hē-sò͘	α form: 55.7 GPa
Shear hē-sò͘	α form: 22.1 GPa
Bulk hē-sò͘	α form: 38.7 GPa
Poisson pí	α form: 0.261
Vickers ngē-tō͘	450–865 MPa
Brinell ngē-tō͘	675–1200 MPa
CAS teng-kì pian-hō	7440-27-9
Le̍k-sú
Hō-miâ	after Ytterby (Sweden), where it was mined
Hoat-hiān kap siōng chá ê tông-ūi-sò͘	Carl Gustaf Mosander (1842)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: terbium ê tông-ūi-sò͘
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