Iridium

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.

[[Media:[[[[lunarp:==Related Articles==

• Platinum Group Metals
• Ruthenium
• Rhodium
• Palladium
• Osmium
• Platinum
• Resource Values
• Periodic Table

This article is an automatically generated stub. As such it may contain serious errors. You can help Lunarpedia by expanding or correcting it.

|Article Caption^lunarp]]]]]]dummy