Californium (Cf) — Actinide. Atomic number 98.
Silvery radioactive metal
- Atomic number: 98
- Symbol: Cf
- Atomic mass: [251] u
- Category: Actinide
- State: Solid
- Melting point: 899.85 °C / 1173 K
- Density: 15.1 g/cm³ (20°C)
- Electron configuration: [Rn] 5f10 7s2
- Oxidation states: +2, +3
- Electronegativity: 1.3
- Discovered by: Stanley Thompson and team (1950)
Common uses: Neutron sources, Research
Biological role: No biological role.
Frequently Asked Questions about Californium
What is the atomic number of californium?
Californium has an atomic number of 98, meaning each atom contains 98 protons in its nucleus.
What is the atomic mass of californium?
The standard atomic weight of californium is [251] u (unified atomic mass units).
What category does californium belong to?
Californium is classified as a actinide.
What is the state of californium at room temperature?
Californium is a solid at 20 °C (68 °F).
What is the melting point of californium?
The melting point of californium is 899.85 °C / 1173 K.
What is the density of californium?
The density of californium is 15.1 g/cm³ (20°C).
What is the electronegativity of californium?
Californium has a Pauling electronegativity of 1.3.
What is the electron configuration of californium?
The electron configuration of californium is [Rn] 5f10 7s2.
What are the common oxidation states of californium?
Californium commonly exhibits the following oxidation states: +2, +3.
When was californium discovered?
Californium was discovered in 1950 by Stanley Thompson and team.
Is californium radioactive?
Californium is a synthetic radioactive element that does not occur naturally and must be produced in a laboratory.
What is the biological role of californium?
No biological role.
What are the common uses of californium?
Californium is used for: Neutron sources; Research.
