Hydrogen vs Carbon
| Property | H Hydrogen | C Carbon |
|---|---|---|
| Atomic number | 1 | 6 |
| Symbol | H | C |
| Name | Hydrogen | Carbon |
| Category | nonmetal | nonmetal |
| Standard Atomic Weight | 1.007975 u | 12.0106 u |
| Period | 1 | 2 |
| Group | 1 | 14 |
| Block | s | p |
| Phase at STP | gas | solid |
| Electron configuration | 1s1 | [He]2s22p2 |
| Oxidation states | [-1, 1] | [-4, -3, -2, -1, 0, 1, 2, 3, 4] |
| Electronegativity (Pauling) | 2.2 | 2.55 |
| Electron affinity | 0.75419 eV | 1.2621 eV |
| Density | 0.08988 kg/m³ | 2267 kg/m³ |
| Melting point | -259.34 °C | 3549.85 °C |
| Boiling point | -252.87 °C | 3824.85 °C |
| Discovery year | 1766 | 1797 |