Iridium
(Redirected from Ir)
Iridium | |
---|---|
Ir | |
In situ availability: | |
Necessity: | |
Atomic number: | 77 |
Atomic mass: | 192.217 |
group: | 9 |
period: | 6 |
normal phase: | Solid |
series: | Transition Metals |
density: | 22.65 g/cm3 |
melting point: | 2719K, 2446°C, 4435°F |
boiling point: | 4701K, 4428°C, 8002°F |
Ru ← Rh → Pd | |
Os ← Ir → Pt | |
Hs ← Mt → Ds | |
Atomic radius (pm): | 135 |
Bohr radius (pm): | 180 |
Covalent radius (pm): | 137 |
Van der Waals radius (pm): | |
ionic radius (pm): | (+4) 63 |
1st ion potential (eV): | 9.1 |
Electron Configuration | |
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d7 6s2 | |
Electrons Per Shell | |
2, 8, 18, 32, 15, 2 | |
Electronegativity: | 2.2 |
Electron Affinity: | 1.57 |
Oxidation states: | 2, 3, 4, 6 |
Magnetism: | ? |
Crystal structure: | Face centered cubic |
Iridium is a Transition Metal in group 9.
It has a Face centered cubic crystalline structure.
This element has two stable isotopes: 191 and 193.
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