Rutherfordium (Rf) - Element 104 | Properties & Electron Configuration
What is Rutherfordium?
Rutherfordium (Rf) is element 104, a transition metal in period 7, group 4. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d² 7s².
| Atomic Number | 104 |
| Symbol | Rf |
| Atomic Mass | 267 u |
| Category | Transition Metal |
| Period | 7 |
| Group | 4 |
| Block | d |
| Electron Configuration | 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d² 7s² |
| Short Config | [Rn] 5f¹⁴ 6d² 7s² |
| Electronegativity | N/A |
| Atomic Radius | N/A |
| Ionization Energy | 580 kJ/mol |
| Electron Affinity | N/A |
| Phase (STP) | Solid |
Electron Configuration
The full electron configuration of Rutherfordium is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d² 7s². In noble gas shorthand, this is written as [Rn] 5f¹⁴ 6d² 7s².
Rutherfordium is a d-block element in group 4, period 7.
Periodic Trends
Ionization Energy: 580 kJ/mol. Ionization energy generally increases across a period and decreases down a group.
View all 118 elements with trend overlays for electronegativity, atomic radius, ionization energy, and electron affinity.
Explore Rutherfordium on the Interactive Periodic TableRelated Topics
Titanium (Ti)
Properties of Titanium - same group as Rutherfordium
Zirconium (Zr)
Properties of Zirconium - same group as Rutherfordium
Hafnium (Hf)
Properties of Hafnium - same group as Rutherfordium
Francium (Fr)
Properties of Francium - same period as Rutherfordium
Radium (Ra)
Properties of Radium - same period as Rutherfordium
Actinium (Ac)
Properties of Actinium - same period as Rutherfordium