Iridium, 77 Ir Iridium ᵒiridiyum· Pabaosan (i-RID -ee-əm ) Cingakan silvery white Bobot atom standar A r, std (Ir) 7002192217000000000♠ 192.217(2)[ 1] Iridium ring tabél périodik
Wilangan atom (Z ) 77 Watek golongan 9 Période période 6 Blok blok-d Konpigurasi éléktron [Xé ] 4f14 5d7 6s2 Éléktron per kulit 2, 8, 18, 32, 15, 2 Cecirén pisik Pase ring STP padet Titik lebur 2719 K (2446 °C, 4435 °F) Titik didih 4403 K (4130 °C, 7466 °F) Kapadetan (nampek s.r. ) 22.56 g/cm3 ri kala éncéh (ring t.l. ) 19 g/cm3 Panes fusi 41.12 kJ/mol Panes panguapan 564 kJ/mol Kapasitas panes molar 25.10 J/(mol·K) Tekanan uap
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
2713
2957
3252
3614
4069
4659
Cecirén atom Paindikan oksidasi −3, −1, 0, +1, +2, +3 , +4 , +5, +6, +7, +8, +9[ 2] Kaéléktronégatipan skala Pauling: 2.20 Wasa ionisasi ka-1: 880 kJ/mol ka-2: 1600 kJ/mol Jeriji atom émpiris: 136 pm Jeriji kovalén 141±6 pm Garis spéktral saking iridiumCecirén liyanan Rupa alami primordial Struktur kristal kubus mapusat muka (fcc) Kagelisan swara pales tipis 4825 m/s (ring 20 °C) Ékspansi térmal 6.4 µm/(m⋅K) Konduktivitas térmal 147 W/(m⋅K) Resistivitas listrik 47.1 nΩ⋅m (ring 20 °C) bacakan magnétik paramagnetic [ 3] Karentanan magnétik molar +25.6 × 10−6 cm3 /mol (298 K)[ 4] Modulus Young 528 GPa Modulus Shear 210 GPa Modulus Bulk 320 GPa Rasio Poisson 0.26 Kakatosan Mohs 6.5 Kakatosan Vickers 1760–2200 MPa Kakatosan Brinell 1670 MPa Nomor CAS 7439-88-5 Lelintihan Pacundukan lan isolasi kapertamaSmithson Tennant (1803)Isotop utama iridium
Kategori:Iridium | pustaka
Ir:
ring
itung saking C
bina
parihindik
pus
C
2446
—
—
K
2719
2719
0
F
4435
4435
0
présisi maks
0
WD
String Module Error: Target string is empty
dagingan
C: 2446, K: 2719, F: 4435
pabligbagan
Ir:
ring
itung saking C
bina
parihindik
pus
C
4130
—
—
K
4403
4400
3
delta
F
7466
7470
-4
delta
présisi maks
0
WD
String Module Error: Target string is empty
dagingan
C: 4130, K: 4403, F: 7466
pabligbagan
Pustaka
Pustaka pacang tampil ring suratan, menawi lis puniki wantah tampil ring kaca puniki.
↑ Méija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry . 88 (3): 265–91. doi :10.1515/pac-2015-0305 .
↑ 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 (7523): 475–477. Bibcode :2014Natur.514..475W . doi :10.1038/nature13795 . PMID 25341786 . S2CID 4463905 .
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (édisi ka-86th). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5 .
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics . Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4 .