Erbium, 68Er| ngoi-kôn |
|---|
silvery white
 |
| Kî-pún sin-sit |
|---|
| Miàng, fù-ho |
Erbium, Er |
|---|
| ngoi-hìn |
silvery white |
|---|
| Erbium chhai chû-khì-péu ke vi-chi |
|---|
|
|
| ngièn-chṳ́ sì-sú |
68 |
|---|
| ngièn-chṳ́-liòng (±) |
167.259(3)[1] |
|---|
| ngièn-su lui-phe̍t |
lanthanum-hi |
|---|
| Chhu̍k, fûn-khî |
n/a, f-block |
|---|
| chû-khì |
period 6 |
|---|
| thien-chṳ́ phài-lie̍t |
[Xe] 4f12 6s2 |
|---|
| per shell |
2, 8, 18, 30, 8, 2 |
|---|
| vu̍t-lî sin-chṳt |
|---|
| Siông |
ku-thí |
|---|
| yùng-tiám |
1802 K (1529 °C, 2784 °F) |
|---|
| pui-tiám |
3141 K (2868 °C, 5194 °F) |
|---|
| Me̍t-thu near Sit-vûn |
9.066 g·cm−3 |
|---|
|
8.86 g·cm−3 |
| Yùng-fa-ngie̍t |
19.90 kJ·mol−1 |
|---|
| Chîn-fat-ngie̍t |
280 kJ·mol−1 |
|---|
| Ngie̍t-yùng-liong |
28.12 J·mol−1·K−1 |
|---|
chîn-hi-ap
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| chhai T (K) |
1504 |
1663 |
(1885) |
(2163) |
(2552) |
(3132) |
|
| Ngièn-chṳ́ sin-chṳt |
|---|
| Yông-fa-su |
3, 2, 1 (a basic oxide) |
|---|
| Thien-fu-sin |
Pauling scale: 1.24 |
|---|
| Thien-lì-nèn |
1st: 589.3 kJ·mol−1
2nd: 1150 kJ·mol−1
3rd: 2194 kJ·mol−1 |
|---|
| Ngièn-chṳ́ pan-kang |
empirical: 176 pm |
|---|
| Khiung-ka pan-kang |
189±6 pm |
|---|
| Miscellanea |
|---|
| Chîn-thí keu-chho |
hexagonal close-packed (hcp) |
|---|
| Sâng-suk thin rod |
2830 m·s−1 (at 20 °C) |
|---|
| Ngie̍t-phàng-chong |
poly: 12.2 µm·m−1·K−1 (r.t.) |
|---|
| Ngie̍t-chhòn-thô-li̍t |
14.5 W·m−1·K−1 |
|---|
| Thien-chú-li̍t |
poly: 0.860 µΩ·m (r.t.) |
|---|
| Chhṳ̀-sin |
paramagnetic at 300 K |
|---|
| Young's modulus |
69.9 GPa |
|---|
| Shear modulus |
28.3 GPa |
|---|
| Bulk modulus |
44.4 GPa |
|---|
| Poisson ratio |
0.237 |
|---|
| Vickers hardness |
430–700 MPa |
|---|
| Brinell hardness |
600–1070 MPa |
|---|
| CAS Registry Number |
7440-52-0 |
|---|
| Le̍k-sú |
|---|
| Hí-miàng |
after Ytterby (Sweden), where it was mined |
|---|
| Fat-hien |
Carl Gustaf Mosander (1842) |
|---|
| Chui vún-thin ke thùng-vi-su |
|---|
|
Chú vùn-chông: Erbium ke thùng-vi-su |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 160Er |
syn |
28.58 h |
ε |
0.330 |
160Ho |
| 162Er |
0.139% |
>1.4×1014 y |
(α) |
1.6460 |
158Dy |
| (β+β+) |
1.8445 |
162Dy |
| 164Er |
1.601% |
– |
(α) |
1.3041 |
160Dy |
| (β+β+) |
0.0241 |
164Dy |
| 165Er |
syn |
10.36 h |
ε |
0.376 |
165Ho |
| 166Er |
33.503% |
– |
(α) |
0.8309 |
162Dy |
| 167Er |
22.869% |
– |
(α) |
0.6657 |
163Dy |
| 168Er |
26.978% |
– |
(α) |
0.5527 |
164Dy |
| 169Er |
syn |
9.4 d |
β− |
0.351 |
169Tm |
| 170Er |
14.910% |
>3.2×1017 y |
(α) |
0.0502 |
166Dy |
| (β−β−) |
0.6536 |
170Yb |
| 171Er |
syn |
7.516 h |
β− |
1.490 |
171Tm |
| 172Er |
syn |
49.3 h |
β− |
0.891 |
172Tm |
|
|
Decay modes in parentheses are predicted, but have not yet been observed |
Erbium (Hon-ngî: 鉺 ěr) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Er, ngièn-chṳ́ su-muk he 68.
