Rutherfordium (Rf)
Rutherfordium
Rutherfordium (Rf) is a transition metal in period 7, group 4. Its relative atomic mass is [267] and the molar mass of the atom is [267] g/mol.
Atomic number 104
Atomic mass [267] predicted
Molar mass [267] g/mol
Category Transition metal Unknown
Properties of rutherfordium
| Atomic number | 104 |
|---|---|
| Symbol | Rf |
| Latin name | Rutherfordium |
| Relative atomic mass | [267] |
| Molar mass | [267] g/mol |
| Group, period, block | 4, 7, d |
| Category | Transition metal |
| State at 20 °C | Unknown |
| Electron configuration | [Rn] 5f¹⁴ 6d² 7s² |
Electron configuration of rutherfordium
Electrons per shell
K2L8M18N32O32P10Q2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d² 7s²
Noble-gas notation
104 protons · 104 electrons[Rn] 5f¹⁴ 6d² 7s²
Formula and compounds of rutherfordium
Simple substanceRfrutherfordiumMolar mass of Rf: [267] g/mol
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Frequently asked questions
The relative atomic mass of rutherfordium is [267], so the molar mass of the atom is [267] g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d² 7s². Noble-gas notation: [Rn] 5f¹⁴ 6d² 7s².