La57 – Lanthanum

  • Atomic Number: 57
  • Atomic Symbol: La
  • Atomic Name: Lanthanum
  • Atomic Mass: 138.9055
  • CPK Hex Color: 70D4FF
  • Electron Configuration: [Xe]6s2 5d1
  • Electron Negativity: 1.1
  • Atomic Radius: 240
  • Ionization Energy: 5.577
  • Electron Affinity: 0.5
  • Oxidation States: 3
  • Standard State: Solid
  • Melting Point: 1191
  • Boiling Point: 3737
  • Density: 6.15
  • Group Block: Lanthanide
  • Year Discovered: 1839

Periodic Table of Elements. (2022, December 23). In PubChem and the National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/periodic-table/#view=table