The chemical symbol for Rutherfordium is Rf and its atomic number is: 104.
We find it listed in the periodic table in Group 4 and 7 period and block.
The Rutherfordium belongs to the family or chemical series of transition metals such as for example the Silver, the Bohrium, cadmium, ...
This element is Radioactive.
Rutherfordium was named after Ernest Rutherford.
Atomic number (Z) 104
Group, block group 4, d-block
Period: period 7
Element category: transition metal
Standard atomic weight (Ar) [267]
Electron configuration: [Rn] 5f14 6d2 7s2
per shell: 2, 8, 18, 32, 32, 10, 2
Physical properties
Phase: solid
Melting point: 2400 K (2100 °C, 3800 °F) (predicted)
Boiling point: 5800 K (5500 °C, 9900 °F) (predicted)
Density near r.t.: 23.2 g/cm3.
Atomic properties
Oxidation states: 4, (3), (2) (parenthesized numbers are predictions)
Ionization energies 1st: 579.9 kJ/mol
2nd: 1389.4 kJ/mol
3rd: 2296.4 kJ/mol
(all estimated)
Atomic radius empirical: 150 pm (estimated)
Covalent radius: 157 pm (estimated)
Crystal structure: hexagonal close-packed (predicted)
CAS Number 53850-36-5