Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Th Thorium | La Lanthanum |
|---|---|---|
| Atomic Number | 90 higher | 57 higher |
| Symbol | Th different | La different |
| Name | Thorium different | Lanthanum different |
| Atomic Mass | 232.038 higher | 138.9055 higher |
| Category | Actinides different | Lanthanides different |
| Period | 7 higher | 6 higher |
| Group | 3 same value | 3 same value |
| Block | f-Block same value | f-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.3 higher | 1.1 higher |
| Atomic Radius | 237 lower | 240 lower |
| Ionization Energy | 6.08 higher | 5.577 higher |
| Electron Affinity | — no data | 0.5 no data |
| Oxidation States | +4 different | +3 different |
| Melting Point | 2023 K (1749.85 °C) higher | 1191 K (917.85 °C) higher |
| Boiling Point | 5061 K (4787.85 °C) higher | 3737 K (3463.85 °C) higher |
| Density | 11.72 higher | 6.15 higher |
| Electron Configuration | [Rn]7s2 6d2 different | [Xe]6s2 5d1 different |
| Year Discovered | 1828 different | 1839 different |
higher lower
Advertisement