25
Mn
Manganese
54.938045 | 2
8
13
2
|
25
Mn
Manganese
54.938045 | 2
8
13
2
|
| General |
|---|
| Name | Manganese | | Symbol | Mn | | Number | 25 | | Chemical series | Transition elements | | Group / Period | 7 / 4 | | Block | d-block | | CAS registry number | 7439-96-5 |
| Physical properties |
|---|
| State | solid | | Density | 7.43 g/cm3 | | Melting point | 1519 K (1246°C, 2275°F) | | Boiling point | 2334 K (2061°C, 3742°F) | | Critical point | |
| Atomic properties |
|---|
| Atomic Weight | 54.938045 g/mol | | Crystal structure | cubic | | Electronegativity | 1.55 | | Atomic radius | 140 pm | | Atomic radius (calculated) | 161 pm | | Electron configuration | [Ar] 4s2 3d5 | | Electrons per shell | 2, 8, 13, 2 | | Number of protons | 25 | | Number of neutrons | 30 |
|
Iron