Neodymium, 60Nd|
silvery white
 |
|
| Miàng, fù-ho | Neodymium, Nd |
|---|
| ngoi-hìn | silvery white |
|---|
|
|
| ngièn-chṳ́ sì-sú | 60 |
|---|
| ngièn-chṳ́-liòng (±) | 144.242(3)[1] |
|---|
| ngièn-su lui-phe̍t | lanthanum-hi |
|---|
| Chhu̍k, fûn-khî | n/a, f-block |
|---|
| chû-khì | period 6 |
|---|
| thien-chṳ́ phài-lie̍t | [Xe] 4f4 6s2 |
|---|
| per shell | 2, 8, 18, 22, 8, 2 |
|---|
|
| Siông | ku-thí |
|---|
| yùng-tiám | 1297 K (1024 °C, 1875 °F) |
|---|
| pui-tiám | 3347 K (3074 °C, 5565 °F) |
|---|
| Me̍t-thu near Sit-vûn | 7.01 g·cm−3 |
|---|
| 6.89 g·cm−3 |
| Yùng-fa-ngie̍t | 7.14 kJ·mol−1 |
|---|
| Chîn-fat-ngie̍t | 289 kJ·mol−1 |
|---|
| Ngie̍t-yùng-liong | 27.45 J·mol−1·K−1 |
|---|
chîn-hi-ap
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| chhai T (K) |
1595 |
1774 |
1998 |
(2296) |
(2715) |
(3336) |
|
|
| Yông-fa-su | +4, +3, +2 (a mildly basic oxide) |
|---|
| Thien-fu-sin | Pauling scale: 1.14 |
|---|
| Thien-lì-nèn | 1st: 533.1 kJ·mol−1
2nd: 1040 kJ·mol−1
3rd: 2130 kJ·mol−1 |
|---|
| Ngièn-chṳ́ pan-kang | empirical: 181 pm |
|---|
| Khiung-ka pan-kang | 201±6 pm |
|---|
|
| Chîn-thí keu-chho | double hexagonal close-packed (dhcp) |
|---|
| Sâng-suk thin rod | 2330 m·s−1 (at 20 °C) |
|---|
| Ngie̍t-phàng-chong | α, poly: 9.6 µm·m−1·K−1 (at r.t.) |
|---|
| Ngie̍t-chhòn-thô-li̍t | 16.5 W·m−1·K−1 |
|---|
| Thien-chú-li̍t | α, poly: 643 nΩ·m |
|---|
| Chhṳ̀-sin | paramagnetic, antiferromagnetic below 20 K[2] |
|---|
| Young's modulus | α form: 41.4 GPa |
|---|
| Shear modulus | α form: 16.3 GPa |
|---|
| Bulk modulus | α form: 31.8 GPa |
|---|
| Poisson ratio | α form: 0.281 |
|---|
| Vickers hardness | 345–745 MPa |
|---|
| Brinell hardness | 265–700 MPa |
|---|
| CAS Registry Number | 7440-00-8 |
|---|
|
| Fat-hien | Carl Auer von Welsbach (1885) |
|---|
|
| Chú vùn-chông: Neodymium ke thùng-vi-su |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 142Nd |
27.2% |
– |
(SF) |
<53.264 |
|
| 143Nd |
12.2% |
– |
(α) |
0.5214 |
139Ce |
| 144Nd |
23.8% |
2.29×1015 y |
α |
1.905 |
140Ce |
| 145Nd |
8.3% |
>6×1016 y |
(α) |
1.5784 |
141Ce |
| 146Nd |
17.2% |
– |
(α) |
1.1822 |
142Ce |
| (β−β−) |
0.0702 |
146Sm |
| 148Nd |
5.7% |
>3.0×1018 y |
(α) |
0.5986 |
144Ce |
| (β−β−) |
1.9288 |
148Sm |
| 150Nd |
5.6% |
6.7×1018 y |
β−β− |
3.367 |
150Sm |
|
| Decay modes in parentheses are predicted, but have not yet been observed |
Neodymium (Hon-ngî: 釹 nǚ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Nd, ngièn-chṳ́ su-muk he 60.
