| Lanthanum | |
| Elemental State | La |
| Electron Configuration | 1s22s22p63s23p63d104s24p64d105s25p66s25d1 |
| First Ionization Potential | 5.577 eV |
| Electron Affinity | 0.5 eV (calculated) |
| Z* | |
| Pauling Electronegativity | 1.10 |
| Covalent Radius | 1.69 Å |
| Metallic Radius | 1.88 Å |
| Ionic Radius | 1.172 Å La3+ coordination number
= 6
1.300 Å La3+ coordination number = 8 |
| van der Waal's Radius | |
| Melting Point | 918 oC |
| Boiling Point | 3464 oC |
| Density | 6.145 g/cm3 |
| Other Properties | |