Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Te Tellurium | Se Selenium |
|---|---|---|
| Atomic Number | 52 higher | 34 higher |
| Symbol | Te different | Se different |
| Name | Tellurium different | Selenium different |
| Atomic Mass | 127.6 higher | 78.97 higher |
| Category | Metalloids different | Reactive Nonmetals different |
| Period | 5 higher | 4 higher |
| Group | 16 same value | 16 same value |
| Block | p-Block same value | p-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 2.1 lower | 2.55 lower |
| Atomic Radius | 206 higher | 190 higher |
| Ionization Energy | 9.01 lower | 9.752 lower |
| Electron Affinity | 1.971 lower | 2.021 lower |
| Oxidation States | +6, +4, -2 same value | +6, +4, -2 same value |
| Melting Point | 722.66 K (449.51 °C) higher | 493.65 K (220.5 °C) higher |
| Boiling Point | 1261 K (987.85 °C) higher | 958 K (684.85 °C) higher |
| Density | 6.232 higher | 4.809 higher |
| Electron Configuration | [Kr]5s2 4d10 5p4 different | [Ar]4s2 3d10 4p4 different |
| Year Discovered | 1782 different | 1817 different |
higher lower
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