Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Rb Rubidium | Nb Niobium |
|---|---|---|
| Atomic Number | 37 lower | 41 lower |
| Symbol | Rb different | Nb different |
| Name | Rubidium different | Niobium different |
| Atomic Mass | 85.468 lower | 92.9064 lower |
| Category | Alkali Metals different | Transition Metals different |
| Period | 5 same value | 5 same value |
| Group | 1 lower | 5 lower |
| Block | s-Block different | d-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 0.82 lower | 1.6 lower |
| Atomic Radius | 303 higher | 207 higher |
| Ionization Energy | 4.177 lower | 6.759 lower |
| Electron Affinity | 0.468 lower | 0.893 lower |
| Oxidation States | +1 different | +5, +3 different |
| Melting Point | 312.46 K (39.31 °C) lower | 2750 K (2476.85 °C) lower |
| Boiling Point | 961 K (687.85 °C) lower | 5017 K (4743.85 °C) lower |
| Density | 1.53 lower | 8.57 lower |
| Electron Configuration | [Kr]5s1 different | [Kr]5s1 4d4 different |
| Year Discovered | 1861 different | 1801 different |
higher lower
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