77
Ir
192.22

Iridium

Element density: 22.65 g/cm3
Electron configuration:

[Xe]4f145d76s2

Oxidation states: +3,4

Major edges

What are these symbols?
M42116
M52040
O2350

Minor edges

M22909
M32551
N1690
N23494
N45295
N6760
O195

Considerations

The M4,5-edge that shows both a strong cross-section and typically low background due to its high energy. To efficiently measure this edge, a large collection angle must be used. Some TEMs do not support high energy loss at short camera lengths due to cut off apertures in the column. Sudden drops in the power law background at high energy typically indicate cut off in the column.

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