Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Ba Barium | Hf Hafnium |
|---|---|---|
| Atomic Number | 56 lower | 72 lower |
| Symbol | Ba different | Hf different |
| Name | Barium different | Hafnium different |
| Atomic Mass | 137.33 lower | 178.49 lower |
| Category | Alkaline Earth Metals different | Transition Metals different |
| Period | 6 same value | 6 same value |
| Group | 2 lower | 4 lower |
| Block | s-Block different | d-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 0.89 lower | 1.3 lower |
| Atomic Radius | 268 higher | 212 higher |
| Ionization Energy | 5.212 lower | 6.825 lower |
| Electron Affinity | — no data | — no data |
| Oxidation States | +2 different | +4 different |
| Melting Point | 1000 K (726.85 °C) lower | 2506 K (2232.85 °C) lower |
| Boiling Point | 2170 K (1896.85 °C) lower | 4876 K (4602.85 °C) lower |
| Density | 3.62 lower | 13.3 lower |
| Electron Configuration | [Xe]6s2 different | [Xe]6s2 4f14 5d2 different |
| Year Discovered | 1808 different | 1923 different |
higher lower
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