Attribute | Dubnium × | Rutherfordium × |
---|---|---|
Discovered (year) | 1967 | 1964 |
Atomic number | 105 | 104 |
Group name | Transition metal | Transition metal |
Oxidation states |
|
|
Electron configuration | [Rn]7s²5f¹⁴6d³ | [Rn]7s²5f¹⁴6d² |
Atomic mass (u) | 268.126 | 267.122 |
Standard state | Solid | Solid |
Symbol | Db | Rf |