Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Y Yttrium | Sm Samarium |
|---|---|---|
| Atomic Number | 39 lower | 62 lower |
| Symbol | Y different | Sm different |
| Name | Yttrium different | Samarium different |
| Atomic Mass | 88.9058 lower | 150.4 lower |
| Category | Transition Metals different | Lanthanides different |
| Period | 5 lower | 6 lower |
| Group | 3 same value | 3 same value |
| Block | d-Block different | f-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.22 higher | 1.17 higher |
| Atomic Radius | 219 lower | 229 lower |
| Ionization Energy | 6.217 higher | 5.644 higher |
| Electron Affinity | 0.307 no data | — no data |
| Oxidation States | +3 different | +3, +2 different |
| Melting Point | 1795 K (1521.85 °C) higher | 1347 K (1073.85 °C) higher |
| Boiling Point | 3618 K (3344.85 °C) higher | 2067 K (1793.85 °C) higher |
| Density | 4.47 lower | 7.52 lower |
| Electron Configuration | [Kr]5s2 4d1 different | [Xe]6s2 4f6 different |
| Year Discovered | 1794 different | 1879 different |
higher lower
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