104
Rf
Rutherfordium
Rutherfordium
Rutherfordium (Rf)
Transition Metals · Solid · Period 7 · Group 4
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Element Properties
- Atomic Number
- 104
- Symbol
- Rf
- Atomic Mass
- 267.122
- Category
- Transition Metals
- Standard State
- Solid
- Period
- 7
- Group
- 4
- Electronegativity
- —
- Atomic Radius
- —
- Ionization Energy
- —
- Electron Affinity
- —
- Oxidation States
- +4
- Melting Point
- —
- Boiling Point
- —
- Density
- —
- Electron Configuration
- [Rn]7s2 5f14 6d2
- Year Discovered
- 1964
Frequently asked questions
What is the atomic number of Rutherfordium?
The atomic number of Rutherfordium is 104, which equals the number of protons in its nucleus.
What is the atomic mass of Rutherfordium?
The atomic mass of Rutherfordium is approximately 267.122 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Rutherfordium?
The electron configuration of Rutherfordium is [Rn]7s2 5f14 6d2.
Where is Rutherfordium in the periodic table?
Rutherfordium is located in period 7, group 4.
When was Rutherfordium discovered?
Rutherfordium was discovered in 1964.