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Templat:Infobox iridium

osmium ← iridium → platina
Rh

Ir

Mt
Panampilan
putih keperakan
Two square pieces of gray foil
Ciri-ciri umum
Namo, lambang, Nomor atom iridium, Ir, 77
Disabuik /ɨˈrɪdiəm/
Jinih unsur logam transisi
Golongan, pariode, blok 9, 6, d
Massa atom standar 192.217
Konfigurasi elektron [Xe] 4f14 5d7 6s2
2, 8, 18, 32, 15, 2
Kulit elektron dari iridium (2, 8, 18, 32, 15, 2)
Kulit elektron dari iridium (2, 8, 18, 32, 15, 2)
Sipaik fisika
Fase solid
Masso jinih (mandokek-i suhu kamar) 22.56 g·cm−3
Masso jinih caiaran pado t.l. 19 g·cm−3
Titik lebur 2739 K, 2466 °C, 4471 °F
Titik didih 4701 K, 4428 °C, 8002 °F
Kalor palaburan 41.12 kJ·mol−1
Kalor penguapan 563 kJ·mol−1
Kapasitas kalor 25.10 J·mol−1·K−1
Tokanan uap
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2713 2957 3252 3614 4069 4659
Sipaik atom
Bilangan oksidasi −3,−1, 0, 1, 2, 3, 4, 5, 6
Elektronegativitas 2.20 (skala Pauling)
Energi ionisasi partamo: 880 kJ·mol−1
ke-2: 1600 kJ·mol−1
Jari-jari atom 136 pm
Jari-jari kovalen 141±6 pm
Lain-lain
Struktur kristal face-centered cubic
Pambanahan magnetik paramagnetik[1]
Katarhambatan elektris (20 °C) 47.1 nΩ·m
Konduktivitas termal 147 W·m−1·K−1
Ekspansi termal 6.4 µm/(m·K)
Kacapatan suaro (batang ringan) (20 °C) 4825 m·s−1
Modulus Young 528 GPa
Modulus Shear 210 GPa
Bulk modulus 320 GPa
Rasio Poisson 0.26
Kakarasan Mohs 6.5
Kakarasan Viker 1760 MPa
Kakarasan Brinell 1670 MPa
Nomor CAS 7439-88-5
Isotop paliang stabil
iso NA Waktu paruh 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% Ir stabil dangan 114 neutron

Templat:Elementbox isotopes decay2

192m2Ir syn 241 thn IT 0.161 192Ir
193Ir 62.7% Ir stabil dangan 116 neutron
193mIr syn 10.5 hari IT 0.080 193Ir
194Ir syn 19.3 h β 2.247 194Pt
194m2Ir syn 171 hari IT ? 194Ir
· r

References

  1. Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed (2005). CRC Handbook of Chemistry and Physics (edisi ke-ke-86). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. 



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Templat:Infobox iridium
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