⚖️ Compare Elements
Select elements to compare all their properties side by side.
Select up to 4 elements to compare (click to toggle):
| Property | H — Hydrogen | C — Carbon | Fe — Iron |
|---|---|---|---|
| Atomic Mass (u) | 1.008 | 12.011 | 55.84 |
| Electronegativity (Pauling) | 2.2 | 2.55 | 1.83 |
| Atomic Radius (pm) | 120 | 170 | 194 |
| Ionization Energy (eV) | 13.598 | 11.26 | 7.902 |
| Electron Affinity (eV) | 0.754 | 1.263 | 0.163 |
| Melting Point (K) | 13.81 | 3823 | 1811 |
| Boiling Point (K) | 20.28 | 4098 | 3134 |
| Density (g/cm³) | 0.00008988 | 2.267 | 7.874 |
| Electron Config | 1s1 | [He]2s2 2p2 | [Ar]4s2 3d6 |
| Oxidation States | +1, -1 | +4, +2, -4 | +3, +2 |
| State | Gas | Solid | Solid |
| Group | Nonmetal | Nonmetal | Transition metal |
| Discovered | 1766 | Ancient | Ancient |