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Periodic table
Characteristics of the element
Symbol:
Ir
Name:
Iridium
Latin name:
Iridium
Atomic number:
77
Atomic mass:
192,217
Melting point:
2410 (°C)
Boiling point:
4527 (°C)
Density
22,42 (g/cm
3
)
Electronegativity:
1,5
Oxidation number:
III,IV,VI
Number of neutrons:
115
Crystal structure:
Cubic
Chemical serie:
Transition metals
Color:
white
Electron configuration:
2-8-18-32-15-2
Year of discovery::
1804
Pure material
Symbol
Name
Next information
Ir
Iridium
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Sputtering targets
Symbol
Name
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Ir
Iridium
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Update: 26.11.25