98
Cf
Californium
Californium
Californium (Cf)
Actinides · Solid · Period 7 · Group 3
Element Properties
- Atomic Number
- 98
- Symbol
- Cf
- Atomic Mass
- 251.0796
- Category
- Actinides
- Standard State
- Solid
- Period
- 7
- Group
- 3
- Electronegativity
- 1.3
- Atomic Radius
- 245
- Ionization Energy
- 6.3
- Electron Affinity
- —
- Oxidation States
- +3
- Melting Point
- 1173 K (899.85 °C)
- Boiling Point
- —
- Density
- —
- Electron Configuration
- [Rn]7s2 5f10
- Year Discovered
- 1950
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Frequently asked questions
What is the atomic number of Californium?
The atomic number of Californium is 98, which equals the number of protons in its nucleus.
What is the atomic mass of Californium?
The atomic mass of Californium is approximately 251.0796 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Californium?
The electron configuration of Californium is [Rn]7s2 5f10.
Where is Californium in the periodic table?
Californium is located in period 7, group 3.
When was Californium discovered?
Californium was discovered in 1950.
Related elements
Same group
21
Sc
Scandium
44.956
39
Y
Yttrium
88.906
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.24