Iridium [+]Compare [E]dit [H]istory

Aliases: Ir

Object «Iridium» was created due to

Add new object to «Iridium» or move existing objects here.

Object «Iridium» has attributes

Attribute Value
Symbol Ir
Standard state Solid
Atomic mass 192.22 u
Electron configuration [Xe]6s²4f¹⁴5d⁷
Oxidation states
  • +3
  • +4
Electronegativity (pauling scale) 2.2
Atomic radius (van der waals) 202 pm
Ionization energy 9.1 eV
Electron affinity 1.565 eV
Melting point 2719 K
Boiling point 4701 K
Density 22.42 g/cm³
Atomic number 77
Group name Transition metal
Discovered 1803 year

Similar objects


Most often compared with


Everyone can something to edit or add.
There was one edit, no edits waiting approval. Last edited by fink.isabella(301), Jun 1, 2022 (19 fields were changed)
[C]ompare » ×


Help · Contact us · Disclaimer · Contributors · Developers · Donate