Element: Iridium (Ir)

Element (Atom) NameIridium
SymbolIr
Physical state at room temperatureSolid
Element ClassificationMetal
Group NameNone
Period Number (Periodic table) 6
Group number (Periodic table)9
Atomic number77
Atomic weight192.217 (Ref: Jlab-ele077, ciaaw-iridium, Nist-77)
192.2 (Ref: Lanl-77)
Atomic Radius202 pm (Van der Waals) (Ref: Lanl-77)
Density22.42g/cm3 (Ref: Jlab-ele077)
Melting point2446°C (Ref: Jlab-ele077, Lanl-77)
Boiling point4428°C (Ref: Jlab-ele077)
4130 °C (Ref: Lanl-77)
Electron shell configuration1s2 
2s2 2p6 
3s2 3p6 3d10 
4s2 4p6 4d10 4f14 
5s2 5p6 5d7
6s2 
Oxidation States+4, +3 (Ref: Jlab-ele077)
−3, −1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Ref: Lanl-77)
Ionization Energy9.1 eV (Ref: Jlab-ele077)
8.96702 eV (Ref: Nist-77)
Number of Stable Isotopes2
InChIInChI=1S/Ir (Ref: Pubchem-77)
InChI KeyGKOZUEZYRPOHIO-UHFFFAOYSA-N (Ref: Pubchem-77)
Remarks 

REFERENCES

  • Jlab-ele077: https://education.jlab.org/itselemental/ele077.html
  • Lanl-77: https://periodic.lanl.gov/77.shtml
  • ciaaw-iridium: https://www.ciaaw.org/iridium.htm
  • Nist-77: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=77
  • Pubchem-77: https://pubchem.ncbi.nlm.nih.gov/element/77
  • science.co.il: https://www.science.co.il/elements/

Was this post helpful?

Author: admin

Leave a Reply

Your email address will not be published. Required fields are marked *