Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | S Sulfur | Se Selenium |
|---|---|---|
| Atomic Number | 16 lower | 34 lower |
| Symbol | S different | Se different |
| Name | Sulfur different | Selenium different |
| Atomic Mass | 32.07 lower | 78.97 lower |
| Category | Reactive Nonmetals same value | Reactive Nonmetals same value |
| Period | 3 lower | 4 lower |
| 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 | 2.58 higher | 2.55 higher |
| Atomic Radius | 180 lower | 190 lower |
| Ionization Energy | 10.36 higher | 9.752 higher |
| Electron Affinity | 2.077 higher | 2.021 higher |
| Oxidation States | +6, +4, -2 same value | +6, +4, -2 same value |
| Melting Point | 388.36 K (115.21 °C) lower | 493.65 K (220.5 °C) lower |
| Boiling Point | 717.75 K (444.6 °C) lower | 958 K (684.85 °C) lower |
| Density | 2.067 lower | 4.809 lower |
| Electron Configuration | [Ne]3s2 3p4 different | [Ar]4s2 3d10 4p4 different |
| Year Discovered | Ancient different | 1817 different |
higher lower
Advertisement