Calcium vs Manganese
| Property | Ca Calcium | Mn Manganese |
|---|---|---|
| Atomic number | 20 | 25 |
| Symbol | Ca | Mn |
| Name | Calcium | Manganese |
| Category | alkaline-earth-metal | transition-metal |
| Standard Atomic Weight | 40.078 u | 54.938044 u |
| Period | 4 | 4 |
| Group | 2 | 7 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s2 | [Ar]4s23d5 |
| Oxidation states | [1, 2] | [-3, -1, 0, 1, 2, 3, 4, 5, 6, 7] |
| Electronegativity (Pauling) | 1 | 1.55 |
| Electron affinity | 0.0245 eV | -0.5 eV |
| Density | 1540 kg/m³ | 7300 kg/m³ |
| Melting point | 841.85 °C | 1245.85 °C |
| Boiling point | 1483.85 °C | 2060.85 °C |
| Discovery year | 1808 | 1774 |