Element: Polonium (Po)

Element (Atom) NamePolonium
SymbolPo
Physical state at room temperatureSolid
Element ClassificationMetal
Group NameChalcogen
Period Number (Periodic table) 6
Group number (Periodic table)16
Atomic number84
Atomic weight209 (Ref: Jlab-ele084, Lanl-84, Nist-84)
Atomic Radius197 pm (Van der Waals) (Ref: Lanl-84)
Density9.32 g/cm3 (Ref: Jlab-ele084)
Melting point254°C (Ref: Jlab-ele084, Lanl-84)
Boiling point962°C (Ref: Jlab-ele084, Lanl-84)
Electron shell configuration1s2 
2s2 2p6 
3s2 3p6 3d10 
4s2 4p6 4d10 4f14 
5s2 5p6 5d10
6s2 6p4
Oxidation States+4, +2 (Ref: Jlab-ele084)
6, 5, 4, 2, -1 (Ref: Lanl-84)
Ionization Energy8.417 eV (Ref: Jlab-ele084)
8.418070 eV (Ref: Nist-84)
Number of Stable Isotopes0
InChIInChI=1S/Po (Ref: Pubchem-84)
InChI KeyHZEBHPIOVYHPMT-UHFFFAOYSA-N (Ref: Pubchem-84)
RemarksRadioactive

REFERENCES

  • Jlab-ele084: https://education.jlab.org/itselemental/ele084.html
  • Lanl-84: https://periodic.lanl.gov/84.shtml
  • ciaaw-atomic-weights: https://www.ciaaw.org/atomic-weights.htm
  • Nist-84: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=84
  • Pubchem-84: https://pubchem.ncbi.nlm.nih.gov/element/84
  • science.co.il: https://www.science.co.il/elements/

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