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