Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Be Beryllium | B Boron |
|---|---|---|
| Atomic Number | 4 lower | 5 lower |
| Symbol | Be different | B different |
| Name | Beryllium different | Boron different |
| Atomic Mass | 9.0122 lower | 10.81 lower |
| Category | Alkaline Earth Metals different | Metalloids different |
| Period | 2 same value | 2 same value |
| Group | 2 lower | 13 lower |
| Block | s-Block different | p-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.57 lower | 2.04 lower |
| Atomic Radius | 153 lower | 192 lower |
| Ionization Energy | 9.323 higher | 8.298 higher |
| Electron Affinity | — no data | 0.277 no data |
| Oxidation States | +2 different | +3 different |
| Melting Point | 1560 K (1286.85 °C) lower | 2348 K (2074.85 °C) lower |
| Boiling Point | 2744 K (2470.85 °C) lower | 4273 K (3999.85 °C) lower |
| Density | 1.85 lower | 2.37 lower |
| Electron Configuration | [He]2s2 different | [He]2s2 2p1 different |
| Year Discovered | 1798 different | 1808 different |
higher lower
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