Iridium (Hon-ngî: 銥 yī) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Ir, ngièn-chṳ́ su-muk he 77.
Iridium, 77Ir| ngoi-kôn |
|---|
silvery white
 |
| Kî-pún sin-sit |
|---|
| Miàng, fù-ho |
Iridium, Ir |
|---|
| ngoi-hìn |
silvery white |
|---|
| Iridium chhai chû-khì-péu ke vi-chi |
|---|
|
|
| ngièn-chṳ́ sì-sú |
77 |
|---|
| ngièn-chṳ́-liòng (±) |
192.217(3)[1] |
|---|
| ngièn-su lui-phe̍t |
ko-thu kîm-su̍k |
|---|
| Chhu̍k, fûn-khî |
9 chhu̍k, d-block |
|---|
| chû-khì |
period 6 |
|---|
| thien-chṳ́ phài-lie̍t |
[Xe] 4f14 5d7 6s2 |
|---|
| per shell |
2, 8, 18, 32, 15, 2 |
|---|
| vu̍t-lî sin-chṳt |
|---|
| Siông |
ku-thí |
|---|
| yùng-tiám |
2719 K (2446 °C, 4435 °F) |
|---|
| pui-tiám |
4403 K (4130 °C, 7466 °F) |
|---|
| Me̍t-thu near Sit-vûn |
22.56 g·cm−3 |
|---|
|
19 g·cm−3 |
| Yùng-fa-ngie̍t |
41.12 kJ·mol−1 |
|---|
| Chîn-fat-ngie̍t |
564 kJ·mol−1 |
|---|
| Ngie̍t-yùng-liong |
25.10 J·mol−1·K−1 |
|---|
chîn-hi-ap
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| chhai T (K)
|
2713
|
2957
|
3252
|
3614
|
4069
|
4659
| |
| Ngièn-chṳ́ sin-chṳt |
|---|
| Yông-fa-su |
−3, −1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9[2] |
|---|
| Thien-fu-sin |
Pauling scale: 2.20 |
|---|
| Thien-lì-nèn |
1st: 880 kJ·mol−1
2nd: 1600 kJ·mol−1 |
|---|
| Ngièn-chṳ́ pan-kang |
empirical: 136 pm |
|---|
| Khiung-ka pan-kang |
141±6 pm |
|---|
| Miscellanea |
|---|
| Chîn-thí keu-chho |
face-centered cubic (fcc) |
|---|
| Sâng-suk thin rod |
4825 m·s−1 (at 20 °C) |
|---|
| Ngie̍t-phàng-chong |
6.4 µm·m−1·K−1 |
|---|
| Ngie̍t-chhòn-thô-li̍t |
147 W·m−1·K−1 |
|---|
| Thien-chú-li̍t |
47.1 nΩ·m (at 20 °C) |
|---|
| Chhṳ̀-sin |
paramagnetic[3] |
|---|
| Young's modulus |
528 GPa |
|---|
| Shear modulus |
210 GPa |
|---|
| Bulk modulus |
320 GPa |
|---|
| Poisson ratio |
0.26 |
|---|
| Mohs hardness |
6.5 |
|---|
| Vickers hardness |
1760–2200 MPa |
|---|
| Brinell hardness |
1670 MPa |
|---|
| CAS Registry Number |
7439-88-5 |
|---|
| Le̍k-sú |
|---|
| Discovery and first isolation |
Smithson Tennant (1803) |
|---|
| Chui vún-thin ke thùng-vi-su |
|---|
|
Chú vùn-chông: Iridium ke thùng-vi-su |
| iso
|
NA
|
half-life
|
DM
|
DE (MeV)
|
DP
|
| 188Ir
|
syn
|
1.73 d
|
ε
|
1.64
|
188Os
|
| 189Ir
|
syn
|
13.2 d
|
ε
|
0.532
|
189Os
|
| 190Ir
|
syn
|
11.8 d
|
ε
|
2.000
|
190Os
|
| 191Ir
|
37.3%
|
–
|
(α)
|
2.0839
|
187Re
|
| 192Ir
|
syn
|
73.827 d
|
β−
|
1.460
|
192Pt
|
| ε
|
1.046
|
192Os
|
| 192m2Ir
|
syn
|
241 y
|
IT
|
0.161
|
192Ir
|
| 193Ir
|
62.7%
|
–
|
(α)
|
1.0173
|
189Re
|
| 193mIr
|
syn
|
10.5 d
|
IT
|
0.080
|
193Ir
|
| 194Ir
|
syn
|
19.3 h
|
β−
|
2.247
|
194Pt
|
| 194m2Ir
|
syn
|
171 d
|
IT
|
–
|
194Ir
| |
|
Decay modes in parentheses are predicted, but have not yet been observed |
- ↑ Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
- ↑ Wang, Guanjun; Zhou, Mingfei; Goettel, James T.; Schrobilgen, Gary G.; Su, Jing; Li, Jun; Schlöder, Tobias; Riedel, Sebastian (2014). "Identification of an iridium-containing compound with a formal oxidation state of IX". Nature 514: 475–477. doi:10.1038/nature13795.
- ↑ Lide, D. R., pian. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th pán.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. Archived from the original on 2011-03-03. 2018-06-10 chhà-khon.
