111
Rg
Roentgenium
(280) | 2
8
18
32
32
17
2
|
111
Rg
Roentgenium
(280) | 2
8
18
32
32
17
2
|
| General |
|---|
| Name | Roentgenium | | Symbol | Rg | | Number | 111 | | Chemical series | Transition elements | | Group / Period | 11 / 7 | | Block | d-block | | CAS registry number | 54386-24-2 |
| Physical properties |
|---|
| State | solid | | Density | g/cm3 | | Melting point | | | Boiling point | | | Critical point | |
| Atomic properties |
|---|
| Atomic Weight | (280) g/mol | | Crystal structure | | | Electronegativity | | | Atomic radius | | | Atomic radius (calculated) | | | Electron configuration | [Rn] 5f14 6d9 7s2 | | Electrons per shell | 2, 8, 18, 32, 32, 17, 2 | | Number of protons | 111 | | Number of neutrons | 161 |
|
Ununbium