Neon vs Barium
| Property | Ne Neon | Ba Barium |
|---|---|---|
| Atomic number | 10 | 56 |
| Symbol | Ne | Ba |
| Name | Neon | Barium |
| Category | noble-gas | alkaline-earth-metal |
| Standard Atomic Weight | 20.1797 u | 137.327 u |
| Period | 2 | 6 |
| Group | 18 | 2 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p6 | [Xe]6s2 |
| Oxidation states | [0] | [1, 2] |
| Electronegativity (Pauling) | N/A | 0.89 |
| Electron affinity | -1.2 eV | 0.1447 eV |
| Density | 0.8999 kg/m³ | 3620 kg/m³ |
| Melting point | -248.59 °C | 726.85 °C |
| Boiling point | -246.05 °C | 1896.85 °C |
| Discovery year | 1898 | 1808 |