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Gadolinium .
Gadolinium, 64 Gd ngoi-kôn
silvery white Kî-pún sin-sit Miàng, fù-ho
Gadolinium, Gd ngoi-hìn
silvery white Gadolinium chhai chû-khì-péu ke vi-chi
ngièn-chṳ́ sì-sú
64 ngièn-chṳ́-liòng (±)
157.25(3)[1] ngièn-su lui-phe̍t
lanthanum-hi Chhu̍k, fûn-khî
n/a , f-block chû-khì
period 6 thien-chṳ́ phài-lie̍t
[Xe ] 4f7 5d1 6s2 per shell
2, 8, 18, 25, 9, 2 vu̍t-lî sin-chṳt Siông
ku-thí yùng-tiám
1585 K (1312 °C, 2394 °F) pui-tiám
3273 K (3000 °C, 5432 °F) Me̍t-thu near Sit-vûn
7.90 g·cm−3
7.4 g·cm−3 Yùng-fa-ngie̍t
10.05 kJ·mol−1 Chîn-fat-ngie̍t
301.3 kJ·mol−1 Ngie̍t-yùng-liong
37.03 J·mol−1 ·K−1
chîn-hi-ap (calculated)
P (Pa)
1
10
100
1 k
10 k
100 k
chhai T (K)
1836
2028
2267
2573
2976
3535
Ngièn-chṳ́ sin-chṳt Yông-fa-su
1, 2, 3 (a mildly basic oxide) Thien-fu-sin
Pauling scale: 1.20 Thien-lì-nèn
1st: 593.4 kJ·mol−1 2nd: 1170 kJ·mol−1 3rd: 1990 kJ·mol−1 Ngièn-chṳ́ pan-kang
empirical: 180 pm Khiung-ka pan-kang
196±6 pm Miscellanea Chîn-thí keu-chho
hexagonal close-packed (hcp) Sâng-suk thin rod
2680 m·s−1 (at 20 °C) Ngie̍t-phàng-chong
α poly: 9.4 µm·m−1 ·K−1 (at 100 °C) Ngie̍t-chhòn-thô-li̍t
10.6 W·m−1 ·K−1 Thien-chú-li̍t
α, poly: 1.310 µΩ·m Chhṳ̀-sin
ferromagnetic-paramagnetic transition at 293.4 K Young's modulus
α form: 54.8 GPa Shear modulus
α form: 21.8 GPa Bulk modulus
α form: 37.9 GPa Poisson ratio
α form: 0.259 Vickers hardness
510–950 MPa CAS Registry Number
7440-54-2 Le̍k-sú Hí-miàng
after the mineral Gadolinite (itself named after Johan Gadolin) Fat-hien
Jean Charles Galissard de Marignac (1880) First isolation
Lecoq de Boisbaudran (1886) Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Gadolinium ke thùng-vi-su
iso
NA
half-life
DM
DE (MeV)
DP
152 Gd
0.20%
1.08×1014 y
α
2.205
148 Sm
154 Gd
2.18%
–
(α)
0.0812
150 Sm
155 Gd
14.80%
–
(α)
0.0812
151 Sm
156 Gd
20.47%
–
(SF)
<71.541
157 Gd
15.65%
–
(SF)
<70.531
158 Gd
24.84%
–
(SF)
<70.965
160 Gd
21.86%
>1.3×1021 y
(β− β− )
1.729
160 Dy
Decay modes in parentheses are predicted, but have not yet been observed
Gadolinium (Hon-ngî : 釓 gá ) he yit-chúng fa-ho̍k ngièn-su , fa-ho̍k fù-ho vì Gd , ngièn-chṳ́ su-muk he 64 .
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