Comparisons / Comparison of Mendelevium and Nobelium

Comparison of Mendelevium and Nobelium [S]ave

Attribute
Nobelium
×

Mendelevium
×
Melting point (K)11001100
Discovered (year)19571955
Electronegativity (pauling scale)1.31.3
Ionization energy (eV)6.656.58
Electron configuration[Rn]7s²5f¹⁴[Rn]7s²5f¹³
Oxidation states
  • +2
  • +3
  • +2
  • +3
Atomic mass (u)259.101258.09843
Standard stateSolidSolid
Group nameActinideActinide
Atomic number102101
SymbolNoMd



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