Hydrogen vs Palladium
Side-by-side comparison of Hydrogen (H, element 1) and Palladium (Pd, element 46) by atomic structure and physical properties.
| | |
|---|
| Atomic number | 1 | 46 |
|---|
| Symbol | H | Pd |
|---|
| Name | Hydrogen | Palladium |
|---|
| Category | nonmetal | transition-metal |
|---|
| Standard Atomic Weight | 1.007975 u | 106.42 u |
|---|
| Period | 1 | 5 |
|---|
| Group | 1 | 10 |
|---|
| Block | s | d |
|---|
| Phase at STP | Gas | Solid |
|---|
| Electron configuration | 1s1 | [Kr]4d10 |
|---|
| Oxidation states | [-1, 1] | [1, 2, 3, 4, 5] |
|---|
| Electronegativity (Pauling) | 2.2 | 2.2 |
|---|
| Electron affinity | 0.75419 eV | 0.557 eV |
|---|
| Density | 0.08988 kg/m³ | 1.2e+4 kg/m³ |
|---|
| Melting point | -259.193 °C | 1554.9 °C |
|---|
| Boiling point | -252.781 °C | 2962.85 °C |
|---|
| Discovery year | 1766 | 1802 |
|---|
Key Differences
| H Hydrogen | Pd Palladium |
|---|
| Standard Atomic Weight | 1.007975 u ↓ lower | 106.42 u ↑ higher |
|---|
| Density | 0.08988 kg/m³ ↓ lower | 1.2e+4 kg/m³ ↑ higher |
|---|
| Melting point | -259.193 °C ↓ lower | 1554.9 °C ↑ higher |
|---|
| Boiling point | -252.781 °C ↓ lower | 2962.85 °C ↑ higher |
|---|
| Electron affinity | 0.75419 eV ↑ higher | 0.557 eV ↓ lower |
|---|
| Period | 1 | 5 |
|---|
| Group | 1 | 10 |
|---|
| Block | s | d |
|---|
| Category | nonmetal | transition-metal |
|---|
| Phase at STP | Gas | Solid |
|---|
| Electron configuration | 1s1 | [Kr]4d10 |
|---|
| Discovery year | 1766 | 1802 |
|---|