Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Rb Rubidium | Sr Strontium |
|---|---|---|
| Atomic Number | 37 lower | 38 lower |
| Symbol | Rb different | Sr different |
| Name | Rubidium different | Strontium different |
| Atomic Mass | 85.468 lower | 87.62 lower |
| Category | Alkali Metals different | Alkaline Earth Metals different |
| Period | 5 same value | 5 same value |
| Group | 1 lower | 2 lower |
| Block | s-Block same value | s-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 0.82 lower | 0.95 lower |
| Atomic Radius | 303 higher | 249 higher |
| Ionization Energy | 4.177 lower | 5.695 lower |
| Electron Affinity | 0.468 no data | — no data |
| Oxidation States | +1 different | +2 different |
| Melting Point | 312.46 K (39.31 °C) lower | 1050 K (776.85 °C) lower |
| Boiling Point | 961 K (687.85 °C) lower | 1655 K (1381.85 °C) lower |
| Density | 1.53 lower | 2.64 lower |
| Electron Configuration | [Kr]5s1 different | [Kr]5s2 different |
| Year Discovered | 1861 different | 1790 different |
higher lower
Advertisement