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Aliases: Sm

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Object «Samarium» has attributes

Attribute Value
Symbol Sm
Standard state Solid
Atomic mass 150.4 u
Electron configuration [Xe]6s²4f⁶
Oxidation states
  • +2
  • +3
Electronegativity (pauling scale) 1.17
Atomic radius (van der waals) 229 pm
Ionization energy 5.644 eV
Melting point 1347 K
Boiling point 2067 K
Density 7.52 g/cm³
Atomic number 62
Group name Lanthanide
Discovered 1879 year
Electron affinity Add

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There was one edit, no edits waiting approval. Last edited by fink.isabella(301), Jun 1, 2022 (18 fields were changed)
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