Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | O Oxygen | Li Lithium |
|---|---|---|
| Atomic Number | 8 higher | 3 higher |
| Symbol | O different | Li different |
| Name | Oxygen different | Lithium different |
| Atomic Mass | 15.999 higher | 7 higher |
| Category | Reactive Nonmetals different | Alkali Metals different |
| Period | 2 same value | 2 same value |
| Group | 16 higher | 1 higher |
| Block | p-Block different | s-Block different |
| Standard State | Gas different | Solid different |
| Electronegativity | 3.44 higher | 0.98 higher |
| Atomic Radius | 152 lower | 182 lower |
| Ionization Energy | 13.618 higher | 5.392 higher |
| Electron Affinity | 1.461 higher | 0.618 higher |
| Oxidation States | -2 different | +1 different |
| Melting Point | 54.36 K (-218.79 °C) lower | 453.65 K (180.5 °C) lower |
| Boiling Point | 90.2 K (-182.95 °C) lower | 1615 K (1341.85 °C) lower |
| Density | 0.0014 lower | 0.534 lower |
| Electron Configuration | [He]2s2 2p4 different | [He]2s1 different |
| Year Discovered | 1774 different | 1817 different |
higher lower
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