Comparison of Rutherfordium and Seaborgium [S]ave
| Attribute |  Seaborgium × | Rutherfordium × |
|---|---|---|
| Discovered (year) | 1974 | 1964 |
| Atomic number | 106 | 104 |
| Group name | Transition metal | Transition metal |
| Oxidation states |
|
|
| Electron configuration | [Rn]7s²5f¹⁴6d⁴ | [Rn]7s²5f¹⁴6d² |
| Atomic mass (u) | 269.128 | 267.122 |
| Standard state | Solid | Solid |
| Symbol | Sg | Rf |
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