Erbium, 68Er|
silvery white
 |
|
| Miàng, fù-ho | Erbium, Er |
|---|
| ngoi-hìn | silvery white |
|---|
|
|
| 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 |
|---|
|
| 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) |
|
|
| 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 |
|---|
|
| 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 |
|---|
|
| Hí-miàng | after Ytterby (Sweden), where it was mined |
|---|
| Fat-hien | Carl Gustaf Mosander (1842) |
|---|
|
| 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.
