Iridium, 77 Ir silvery white Miàng, fù-ho Iridium, Ir ngoi-hìn silvery white 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 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
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 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 Discovery and first isolationSmithson Tennant (1803)Chú vùn-chông: Iridium ke thùng-vi-su
iso
NA
half-life
DM
DE (MeV )
DP
188 Ir
syn
1.73 d
ε
1.64
188 Os
189 Ir
syn
13.2 d
ε
0.532
189 Os
190 Ir
syn
11.8 d
ε
2.000
190 Os
191 Ir
37.3%
–
(α )
2.0839
187 Re
192 Ir
syn
73.827 d
β−
1.460
192 Pt
ε
1.046
192 Os
192m2 Ir
syn
241 y
IT
0.161
192 Ir
193 Ir
62.7%
–
(α)
1.0173
189 Re
193m Ir
syn
10.5 d
IT
0.080
193 Ir
194 Ir
syn
19.3 h
β−
2.247
194 Pt
194m2 Ir
syn
171 d
IT
–
194 Ir
Decay modes in parentheses are predicted, but have not yet been observed
Iridium (Hon-ngî : 銥 yī ) he yit-chúng fa-ho̍k ngièn-su , fa-ho̍k fù-ho vì Ir , ngièn-chṳ́ su-muk he 77 .
↑ 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 .