Comparisons / Comparison of Fermium and Lawrencium

Comparison of Fermium and Lawrencium [S]ave

Attribute
Fermium
×

Lawrencium
×
Atomic mass (u)257.09511266.12
Standard stateSolidSolid
1Oxidation states
  • +3
  • +3
Electron configuration[Rn]5f¹²7s²[Rn]7s²5f¹⁴6d¹
Ionization energy (eV)6.5-
Electronegativity (pauling scale)1.31.3
Melting point (K)18001900
Atomic number100103
Group nameActinideActinide
SymbolFmLr
Discovered (year)19521961



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