Element: Gold (Au)

Element (Atom) NameGold
SymbolAu
Physical state at room temperatureSolid
Element ClassificationMetal
Group NameNone
Period Number (Periodic table) 6
Group number (Periodic table)11
Atomic number79
Atomic weight196.966569 (Ref: Jlab-ele079, Nist-79)
196.966570 (Ref: ciaaw-gold)
197.0 (Ref: Lanl-79)
Atomic Radius166 pm (Van der Waals) (Ref: Lanl-79)
Density19.282 g/cm3 (Ref: Jlab-ele079)
Melting point1064.18°C (Ref: Jlab-ele079, Lanl-79)
Boiling point2856°C (Ref: Jlab-ele079)
2970 °C (Ref: Lanl-79)
Electron shell configuration1s2 
2s2 2p6 
3s2 3p6 3d10 
4s2 4p6 4d10 4f14 
5s2 5p6 5d10
6s1 
Oxidation States+3, +1 (Ref: Jlab-ele079)
5, 3, 2, 1, −1, −2, −3 ​(an amphoteric oxide) (Ref: Lanl-79)
Ionization Energy9.226 eV (Ref: Jlab-ele079)
9.225554 eV (Ref: Nist-79)
Number of Stable Isotopes
InChIInChI=1S/Au (Ref: Pubchem-79)
InChI KeyPCHJSUWPFVWCPO-UHFFFAOYSA-N (Ref: Pubchem-79)
Remarks 

REFERENCES

  • Jlab-ele079: https://education.jlab.org/itselemental/ele079.html
  • Lanl-79: https://periodic.lanl.gov/79.shtml
  • ciaaw-gold: https://www.ciaaw.org/gold.htm
  • Nist-79: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=79
  • Pubchem-79: https://pubchem.ncbi.nlm.nih.gov/element/79
  • 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Your email address will not be published.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 *