Rutherfordium
From Sciencemadness Wiki
 |
This article is a stub. Please help Sciencemadness Wiki by expanding it, adding pictures, and improving existing text.
|
| General properties | |||||
|---|---|---|---|---|---|
| Name, symbol | Rutherfordium, Rf | ||||
| Rutherfordium in the periodic table | |||||
| |||||
| Atomic number | 104 | ||||
| Standard atomic weight (Ar) | 267 | ||||
| Group, block | , d-block | ||||
| Period | period 7 | ||||
| Electron configuration | [Rn] 5f14 6d2 7s2 | ||||
per shell | 2, 8, 18, 32, 32, 10, 2 | ||||
| Physical properties | |||||
| Phase | Solid (predicted) | ||||
| Density near r.t. | 23.2 g/cm3 (predicted) | ||||
| Atomic properties | |||||
| Oxidation states | +2, +3, +4 (predicted) | ||||
| energies |
1st: 580 kJ/mol 2nd: 1390 kJ/mol (predicted) 3rd: 2300 kJ/mol (predicted) (more) | ||||
| Atomic radius | calculated: 150 pm | ||||
| Covalent radius | 157 pm (estimated) | ||||
| Miscellanea | |||||
| Crystal structure | | ||||
| CAS Registry Number | 53850-36-5 | ||||
| History | |||||
| Discovery | Joint Institute for Nuclear Research (1964) | ||||
| Named by | after Ernest Rutherford | ||||
Rutherfordium is a highly radioactive actinide.
