Attribute | Bohrium × | Rutherfordium × |
---|---|---|
Discovered (year) | 1976 | 1964 |
Atomic number | 107 | 104 |
Group name | Transition metal | Transition metal |
Oxidation states |
|
|
Electron configuration | [Rn]7s²5f¹⁴6d⁵ | [Rn]7s²5f¹⁴6d² |
Atomic mass (u) | 270.133 | 267.122 |
Standard state | Solid | Solid |
Symbol | Bh | Rf |