Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Ta Tantalum | La Lanthanum |
|---|---|---|
| Atomic Number | 73 higher | 57 higher |
| Symbol | Ta different | La different |
| Name | Tantalum different | Lanthanum different |
| Atomic Mass | 180.9479 higher | 138.9055 higher |
| Category | Transition Metals different | Lanthanides different |
| Period | 6 same value | 6 same value |
| Group | 5 higher | 3 higher |
| Block | d-Block different | f-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.5 higher | 1.1 higher |
| Atomic Radius | 217 lower | 240 lower |
| Ionization Energy | 7.89 higher | 5.577 higher |
| Electron Affinity | 0.322 lower | 0.5 lower |
| Oxidation States | +5 different | +3 different |
| Melting Point | 3290 K (3016.85 °C) higher | 1191 K (917.85 °C) higher |
| Boiling Point | 5731 K (5457.85 °C) higher | 3737 K (3463.85 °C) higher |
| Density | 16.4 higher | 6.15 higher |
| Electron Configuration | [Xe]6s2 4f14 5d3 different | [Xe]6s2 5d1 different |
| Year Discovered | 1802 different | 1839 different |
higher lower
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