Eegenskapen
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Algemian
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Nööm, Symbool, Numer
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Iriidium, Ir, 77
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Seerie
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Auergungsmetal
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Skööl, Periode, Blook
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9, 6, d
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Klöör, Skak
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salwern witj
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CAS-Numer
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7439-88-5
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Uundial
|
0,001 ppm[1] |
Atomaar [2] |
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Atoommase
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192,217(3)[3] u
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Atoomraadius (bereegent)
|
135 (180) pm
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Kovalent-Raadius
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141 pm
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Elektroonen
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[Xe] 4f14 5d7 6s2 |
1. Ionisiarang
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880 kJ/mol
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2. Ionisiarang
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1600 kJ/mol
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Füsikaalisk [2] |
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Tustant
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fest
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Kristal
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kuubisk
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Sachthaid
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22,56 g/cm3[4] |
Hardhaid
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6,5
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Magnetismus
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paramagneetisk (Χm = 3,8 · 10−5)[5] |
Smoltponkt
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2739 K (2466 °C)
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Köögponkt
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4403 K[6] K (4130 °C)
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Molaar Rüm
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8,52 · 10−6 m3/mol
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Dampwaremk
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564 kJ/mol[6] kJ/mol
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Smoltwaremk
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26 kJ/mol
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Faard faan a tuun
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4825 m/s
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Elektrisk struumfeerang
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19,7 · 106 A/(V · m)
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Waremkfeerang
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150 W/(m · K)
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Cheemisk [2] |
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Oksidatsionstustant
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−3, −1, 0, 1, 2, 3, 4, 5, 6, 8, 9[7] |
Sür of baasisk
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lacht baasisk
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Normoolpotentiaal
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1,156 V (Ir3+ + 3e− → Ir)
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Elektronegatiwiteet
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2,20 (Pauling-Skala)
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Isotoopen
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Isotoop
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NH
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t1/2
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Aktiwiteet
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Energii (MeV)
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Produkt
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189Ir |
{syn.}
| 13,2 d | ε | 0,532 | 189Os | 190Ir |
{syn.}
| 11,78 d | ε | 2,000 | 190Os | 191Ir |
37,3 %
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stabiil | 192Ir |
{syn.}
| 73,830 d | β− | 1,460 | 192Pt | ε | 1,046 | 192Os | 192mIr |
{syn.}
| 241 a | IT | 0,155 | 192Ir | 193Ir |
62,7 %
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stabiil | 194Ir |
{syn.}
| 19,15 h | β− | 2,247 | 194Pt | 195Ir |
{syn.}
| 2,5 h | β− | 1,120 | 195Pt |
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Muar isotoopen bi List faan isotoopen
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NMR-Eegenskapen
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Spin (I)
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γ uun rad·T−1·s−1 |
Er(1H)
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fL bi B = 4,7 T uun MHz
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191Ir
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3/2
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4,812 · 106 |
1,09 · 10−5 |
1,72
| 193Ir
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3/2
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5,227 · 106 |
2,34 · 10−5 |
1,87
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Seekerhaid
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Miast wurd SI-ianhaiden brükt.
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