Description: Lanthanum Element Specifications:
Element Name: Lanthanum
Element Symbol: 57
Element Number: 57
Element Mass: 138.91000
Element Boiling Point: 3469.00 °C
Element Melting Point: 920.00 °C
Element Proton Count: 57
Element Electron Count: 57
Element Neutron Count: 82
Element Density (g/cm³): 6.70000
Element Color (estimate): White