Neon vs Gallium
| Property | Ne Neon | Ga Gallium |
|---|---|---|
| Atomic number | 10 | 31 |
| Symbol | Ne | Ga |
| Name | Neon | Gallium |
| Category | noble-gas | post-transition-metal |
| Standard Atomic Weight | 20.1797 u | 69.723 u |
| Period | 2 | 4 |
| Group | 18 | 13 |
| Block | p | p |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p6 | [Ar]4s23d104p1 |
| Oxidation states | [0] | [-5, -4, -3, -2, -1, 0, 1, 2, 3] |
| Electronegativity (Pauling) | N/A | 1.81 |
| Electron affinity | -1.2 eV | 0.3 eV |
| Density | 0.8999 kg/m³ | 5910 kg/m³ |
| Melting point | -248.59 °C | 29.76 °C |
| Boiling point | -246.05 °C | 2203.85 °C |
| Discovery year | 1898 | 1875 |