
Rutherfordium (Rf) is a chemical element of the periodic table, located in the group 4 and the period 7, and has the atomic number 104. It is a silvery-white transition metal, which is named after British physicist, Ernest Rutherford. It is a transuranium element and is counted as one of the radioactive elements.
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– d block |
FAQs on Rutherfordium Element
Rutherfordium |
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‣ Who discovered rutherfordium? When was rutherfordium discovered? Discovery: Joint Institute for Nuclear Research and Lawrence Berkeley National Laboratory (1964, 1969) |
‣ Rutherfordium location on periodic table![]() Location: Rutherfordium is found in the fourth column of the periodic table below the hafnium element. |
‣ What is rutherfordium’s atomic number? Atomic number (Z): 104 |
‣ What is the symbol for rutherfordium? Symbol: Rf |
‣ Rutherfordium atomic weight: [267] |
‣ What block is rutherfordium in on the periodic table? Block: d-block |
‣ What group is rutherfordium in the periodic table? Group: 4 |
‣ What period is rutherfordium on the periodic table? Period: 7 |
‣ What is the atomic radius of rutherfordium? Atomic radius: empirical: 150 pm (estimated) |
‣ Rutherfordium covalent radius: 157 pm (estimated) |
‣ Rutherfordium melting point: 2400 K (2100 °C, 3800 °F) (predicted) |
‣ Rutherfordium boiling point: 5800 K (5500 °C, 9900 °F) (predicted) |
‣ How many electron shells does rutherfordium have? Electrons per shell: 2, 8, 18, 32, 32, 10, 2 |
‣ What is the electron configuration of rutherfordium? Electron configuration: [Rn] 5f14 6d2 7s2 |
‣ Rutherfordium ionization energies: 1st: 580 kJ/mol 2nd: 1390 kJ/mol 3rd: 2300 kJ/mol |
‣ What is the phase of rutherfordium? Phase (at r.t): solid (predicted) |
‣ Rutherfordium density (near r.t): 17 g/cm3 (predicted) |
‣ Rutherfordium magnetic ordering: synthetic |
‣ Rutherfordium oxidation state: +4 |
‣ Rutherfordium crystal structure: hexagonal close-packed (hcp) (predicted) |
‣ Rutherfordium CAS number: 53850-36-5 |
‣ How many isotopes does rutherfordium have?
Main isotopes of rutherfordium | ||||
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Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
261Rf | syn | 70 s | >80 % α <15 % ε <10% SF | 257No 261Lr |
263Rf | syn | 15 min | <100 % SF ~30 % α | 259No |
265Rf | syn | 1.1 min | SF | |
266Rf | syn | 23 s | SF | |
267Rf | syn | 1.3 h | SF |
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