Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Al Aluminum | B Boron |
|---|---|---|
| Atomic Number | 13 higher | 5 higher |
| Symbol | Al different | B different |
| Name | Aluminum different | Boron different |
| Atomic Mass | 26.9815 higher | 10.81 higher |
| Category | Post-transition Metals different | Metalloids different |
| Period | 3 higher | 2 higher |
| Group | 13 same value | 13 same value |
| Block | p-Block same value | p-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.61 lower | 2.04 lower |
| Atomic Radius | 184 lower | 192 lower |
| Ionization Energy | 5.986 lower | 8.298 lower |
| Electron Affinity | 0.441 higher | 0.277 higher |
| Oxidation States | +3 same value | +3 same value |
| Melting Point | 933.437 K (660.29 °C) lower | 2348 K (2074.85 °C) lower |
| Boiling Point | 2792 K (2518.85 °C) lower | 4273 K (3999.85 °C) lower |
| Density | 2.7 higher | 2.37 higher |
| Electron Configuration | [Ne]3s2 3p1 different | [He]2s2 2p1 different |
| Year Discovered | Ancient different | 1808 different |
higher lower
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