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Templat:Infobox iridium .
osmium ← iridium → platina
Rh ↑Ir ↓ Mt
Panampilan
putih keperakan
Ciri-ciri umum
Namo, lambang, Nomor atom
iridium, Ir, 77
Disabuik
/ ɨ ˈ r ɪ d i əm /
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)
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
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%
Ir stabil dangan 114 neutron
Templat:Elementbox isotopes decay2
192m2 Ir
syn
241 thn
IT
0.161
192 Ir
193 Ir
62.7%
Ir stabil dangan 116 neutron
193m Ir
syn
10.5 hari
IT
0.080
193 Ir
194 Ir
syn
19.3 h
β–
2.247
194 Pt
194m2 Ir
syn
171 hari
IT
?
194 Ir
· r
References
↑ 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 .
Kategori
Kategori :
Templat kotak info tabel periodik
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