Neon vs Cobalt
| Property | Ne Neon | Co Cobalt |
|---|---|---|
| Atomic number | 10 | 27 |
| Symbol | Ne | Co |
| Name | Neon | Cobalt |
| Category | noble-gas | transition-metal |
| Standard Atomic Weight | 20.1797 u | 58.933194 u |
| Period | 2 | 4 |
| Group | 18 | 9 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p6 | [Ar]4s23d7 |
| Oxidation states | [0] | [-3, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | N/A | 1.88 |
| Electron affinity | -1.2 eV | 0.661 eV |
| Density | 0.8999 kg/m³ | 8860 kg/m³ |
| Melting point | -248.59 °C | 1494.85 °C |
| Boiling point | -246.05 °C | 2926.85 °C |
| Discovery year | 1898 | 1735 |