76
Os
Osmium
190.23 | 2
8
18
32
14
2
|
76
Os
Osmium
190.23 | 2
8
18
32
14
2
|
| General |
|---|
| Name | Osmium | | Symbol | Os | | Number | 76 | | Chemical series | Transition elements | | Group / Period | 8 / 6 | | Block | d-block | | CAS registry number | 7440-04-2 |
| Physical properties |
|---|
| State | solid | | Density | 22.61 g/cm3 | | Melting point | 3306 K (3033 °C, 5491 °F) | | Boiling point | 5285 K (5012 °C, 9054 °F) | | Critical point | |
| Atomic properties |
|---|
| Atomic Weight | 190.23 g/mol | | Crystal structure | hexagonal | | Electronegativity | 2.20 | | Atomic radius | 130 pm | | Atomic radius (calculated) | 185 pm | | Electron configuration | [Xe] 4f14 5d6 6s2 | | Electrons per shell | 2, 8, 18, 32, 14, 2 | | Number of protons | 76 | | Number of neutrons | 114 |
|
Iridium