Dysprosium, 66Dy|
silvery white
 |
|
| Miàng, fù-ho | Dysprosium, Dy |
|---|
| ngoi-hìn | silvery white |
|---|
|
|
| ngièn-chṳ́ sì-sú | 66 |
|---|
| ngièn-chṳ́-liòng (±) | 162.500(1)[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 |
|---|
|
| 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) |
|
|
| 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 |
|---|
|
| 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 |
|---|
|
| Fat-hien | Lecoq de Boisbaudran (1886) |
|---|
|
| 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 |
| 156Dy |
0.06% |
>1×1018 y |
(α) |
1.7579 |
152Gd |
| (β+β+) |
2.0108 |
156Gd |
| 158Dy |
0.10% |
– |
(α) |
0.8748 |
154Gd |
| (β+β+) |
0.2833 |
158Gd |
| 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 (Hon-ngî: 鏑 dī) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Dy, ngièn-chṳ́ su-muk he 66.
