Shell Structure
Crystal Structure
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| Element | Information |
| Atomic Number: | 57 |
| Symbol: | La |
| Name: | Lanthanum |
| Name Origin: | Greek lanthanein, "to be hidden" |
| Type: | Rare Earth |
| Atomic Mass: | 138.9055 |
| Melting Point: | 920 |
| Boiling Point: | 3469 |
| Neutrons: | 82 |
| Density: | 6.7 |
| Crystal Structure: | Hexagonal |
| Discovered: | 1839 |
| Discoverers: | Discovered by Carl Gustaf Mosander (Sweden). |
| Other Names: | |
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