Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Zr Zirconium | Rb Rubidium |
|---|---|---|
| Atomic Number | 40 higher | 37 higher |
| Symbol | Zr different | Rb different |
| Name | Zirconium different | Rubidium different |
| Atomic Mass | 91.22 higher | 85.468 higher |
| Category | Transition Metals different | Alkali Metals different |
| Period | 5 same value | 5 same value |
| Group | 4 higher | 1 higher |
| Block | d-Block different | s-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.33 higher | 0.82 higher |
| Atomic Radius | 186 lower | 303 lower |
| Ionization Energy | 6.634 higher | 4.177 higher |
| Electron Affinity | 0.426 lower | 0.468 lower |
| Oxidation States | +4 different | +1 different |
| Melting Point | 2128 K (1854.85 °C) higher | 312.46 K (39.31 °C) higher |
| Boiling Point | 4682 K (4408.85 °C) higher | 961 K (687.85 °C) higher |
| Density | 6.52 higher | 1.53 higher |
| Electron Configuration | [Kr]5s2 4d2 different | [Kr]5s1 different |
| Year Discovered | 1789 different | 1861 different |
higher lower
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