Comparisons / Comparison of Mendelevium and Lawrencium

Comparison of Mendelevium and Lawrencium [S]ave

Attribute
Mendelevium
×

Lawrencium
×
Atomic mass (u)258.09843266.12
Standard stateSolidSolid
Oxidation states
  • +2
  • +3
  • +3
1Electron configuration[Rn]7s²5f¹³[Rn]7s²5f¹⁴6d¹
Ionization energy (eV)6.58-
Electronegativity (pauling scale)1.31.3
Melting point (K)11001900
Atomic number101103
Group nameActinideActinide
SymbolMdLr
Discovered (year)19551961



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