Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Ta Tantalum | Nb Niobium |
|---|---|---|
| Atomic Number | 73 higher | 41 higher |
| Symbol | Ta different | Nb different |
| Name | Tantalum different | Niobium different |
| Atomic Mass | 180.9479 higher | 92.9064 higher |
| Category | Transition Metals same value | Transition Metals same value |
| Period | 6 higher | 5 higher |
| Group | 5 same value | 5 same value |
| Block | d-Block same value | d-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.5 lower | 1.6 lower |
| Atomic Radius | 217 higher | 207 higher |
| Ionization Energy | 7.89 higher | 6.759 higher |
| Electron Affinity | 0.322 lower | 0.893 lower |
| Oxidation States | +5 different | +5, +3 different |
| Melting Point | 3290 K (3016.85 °C) higher | 2750 K (2476.85 °C) higher |
| Boiling Point | 5731 K (5457.85 °C) higher | 5017 K (4743.85 °C) higher |
| Density | 16.4 higher | 8.57 higher |
| Electron Configuration | [Xe]6s2 4f14 5d3 different | [Kr]5s1 4d4 different |
| Year Discovered | 1802 different | 1801 different |
higher lower
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