Dysprosium

Dysprosium,  ₆₆Dy

ngoi-kôn
silvery white
Kî-pún sin-sit
Miàng, fù-ho	dysprosium, Dy
ngoi-hìn	silvery white
Dysprosium chhai chû-khì-péu ke vi-chi
– ↑ Dy ↓ Cf terbium ← dysprosium → holmium
ngièn-chṳ́ sì-sú	66
ngièn-chṳ́-liòng (±)	162.500(1)
ngièn-su lui-phe̍t	lanthanum-hi
Chhu̍k, fûn-khî	n/a, f-block
chû-khì	period 6
thien-chṳ́ phài-lie̍t	[Xe] 4f10 6s2
per shell	2, 8, 18, 28, 8, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1680 K ​(1407 °C, ​2565 °F)
pui-tiám	2840 K ​(2562 °C, ​4653 °F)
Me̍t-thu near Sit-vûn	8.540 g·cm−3
8.37 g·cm−3
Yùng-fa-ngie̍t	11.06 kJ·mol−1
Chîn-fat-ngie̍t	280 kJ·mol−1
Ngie̍t-yùng-liong	27.7 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 1378 1523 (1704) (1954) (2304) (2831)
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	4, 3, 2, 1 ​(a weakly basic oxide)
Thien-fu-sin	Pauling scale: 1.22
Thien-lì-nèn	1st: 573.0 kJ·mol−1 2nd: 1130 kJ·mol−1 3rd: 2200 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 178 pm
Khiung-ka pan-kang	192±7 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal close-packed (hcp)
Sâng-suk thin rod	2710 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	α, poly: 9.9 µm·m−1·K−1 (r.t.)
Ngie̍t-chhòn-thô-li̍t	10.7 W·m−1·K−1
Thien-chú-li̍t	α, poly: 926 nΩ·m (r.t.)
Chhṳ̀-sin	paramagnetic at 300 K
Young's modulus	α form: 61.4 GPa
Shear modulus	α form: 24.7 GPa
Bulk modulus	α form: 40.5 GPa
Poisson ratio	α form: 0.247
Vickers hardness	410–550 MPa
Brinell hardness	500–1050 MPa
CAS Registry Number	7429-91-6
Le̍k-sú
Fat-hien	Lecoq de Boisbaudran (1886)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: dysprosium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 154Dy syn 3.0×106 y α 2.947 150Gd 160Dy 2.34% – (α) 0.4387 156Gd 161Dy 18.91% – (α) 0.3443 157Gd 162Dy 25.51% – (α) 0.0847 158Gd 163Dy 24.90% – (SF) <79.055 164Dy 28.18% – (SF) <79.499
Decay modes in parentheses are predicted, but have not yet been observed

Dysprosium he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Dy, ngièn-chṳ́ su-muk he 66.