98 Cf Californium 251.0 u

Californium

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Period
7
Group
Block
f-block
Phase (STP)
Solid

Californium is a strong neutron emitter used in nuclear reactor startup and moisture gauges. It is one of the most expensive substances on Earth.

Physical Properties

Atomic Mass 251.0 u
Phase at STP Solid

Electronic Properties

Electronegativity 1.3

Electron Configuration

Configuration [Rn] 5f¹⁰ 7s²

Electron Shell Configuration

Californium electron shell configuration Cf 2e⁻ 8e⁻ 18e⁻ 32e⁻ 28e⁻ 8e⁻ 2e⁻

Position in Periodic Table

Californium position in the periodic table Cf

Periodic Table

Lanthanides Actinides

More Actinide

Frequently Asked Questions

What is Californium?
Californium (Cf) is a chemical element with atomic number 98. It is a solid at standard temperature and pressure, classified as a actinide.
What are the key properties of Californium?
Californium has an atomic mass of 251.0 u.
What is the electron configuration of Californium?
The electron configuration of Californium is [Rn] 5f10 7s2. It is in the f-block of the periodic table.
What is the electronegativity of Californium?
Californium has an electronegativity of 1.3 on the Pauling scale.