Quick Facts
| Property | Value |
|---|---|
| Symbol | Rf |
| Atomic Number | 104 |
| Atomic Mass | [267] u |
| Category | Transition Metal |
| Period | 7 |
| Group | 4 |
| Block | d |
| Electron Configuration | [Rn] 5f¹⁴ 6d² 7s² |
History and Discovery
Discovered by: JINR (Dubna) and LBNL (Berkeley) Year of Discovery: 1964-1969 (disputed) Location: Russia and USA
Etymology
Named after Ernest Rutherford, father of nuclear physics.
Interesting Facts
- First transactinide element
- Discovery disputed between Soviet and American teams
- Named after Ernest Rutherford
- Most stable isotope has 1.3-hour half-life
- Chemistry predicted to resemble hafnium