Roentgenium (Rg) - Element 111 | Properties & Electron Configuration
What is Roentgenium?
Roentgenium (Rg) is element 111, a transition metal in period 7, group 11. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d⁹ 7s².
| Atomic Number | 111 |
| Symbol | Rg |
| Atomic Mass | 282 u |
| Category | Transition Metal |
| Period | 7 |
| Group | 11 |
| Block | d |
| Electron Configuration | 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d⁹ 7s² |
| Short Config | [Rn] 5f¹⁴ 6d⁹ 7s² |
| Electronegativity | N/A |
| Atomic Radius | N/A |
| Ionization Energy | N/A |
| Electron Affinity | N/A |
| Phase (STP) | Solid |
Electron Configuration
The full electron configuration of Roentgenium is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d⁹ 7s². In noble gas shorthand, this is written as [Rn] 5f¹⁴ 6d⁹ 7s².
Roentgenium is a d-block element in group 11, period 7.
Periodic Trends
View all 118 elements with trend overlays for electronegativity, atomic radius, ionization energy, and electron affinity.
Explore Roentgenium on the Interactive Periodic TableRelated Topics
Copper (Cu)
Properties of Copper - same group as Roentgenium
Silver (Ag)
Properties of Silver - same group as Roentgenium
Gold (Au)
Properties of Gold - same group as Roentgenium
Francium (Fr)
Properties of Francium - same period as Roentgenium
Radium (Ra)
Properties of Radium - same period as Roentgenium
Actinium (Ac)
Properties of Actinium - same period as Roentgenium