Comparisons / Comparison of Fermium and Mendelevium

Comparison of Fermium and Mendelevium [S]ave

Attribute
Mendelevium
×

Fermium
×
Melting point (K)11001800
Discovered (year)19551952
Electronegativity (pauling scale)1.31.3
Ionization energy (eV)6.586.5
Electron configuration[Rn]7s²5f¹³[Rn]5f¹²7s²
Oxidation states
  • +2
  • +3
  • +3
Atomic mass (u)258.09843257.09511
Standard stateSolidSolid
Group nameActinideActinide
Atomic number101100
SymbolMdFm



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