Copernicium (Cn)
Copernicium (Cn, element 112) is a transition metal in group 12, period 7. Atomic mass 285, electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s², uses and facts.
About Copernicium
Copernicium is a transition metal with the symbol Cn and atomic number 112. Its state at room temperature is not known, because too little of it has been made, and it sits in group 12, period 7 of the periodic table. Copernicium was discovered in 1996 by GSI Helmholtz Centre.
Copernicium key facts
- Atomic number: 112
- Symbol: Cn
- Atomic mass: 285 u
- Category: transition metal
- Group: 12
- Period: 7
- State at room temperature: not known
- Electron configuration: [Rn] 5f¹⁴ 6d¹⁰ 7s²
- Electronegativity (Pauling): not assigned
- Melting point: not known
- Boiling point: not known
- Density: not known
- Common oxidation states: not known
Electron configuration
The electron configuration of copernicium is [Rn] 5f¹⁴ 6d¹⁰ 7s². The part in brackets is the noble gas core; the rest shows how the outer electrons fill their subshells.
Uses of copernicium
- Research only
Did you know?
Named after Nicolaus Copernicus. May behave as a gas at room temperature, unlike other metals in its group.
Other elements in group 12 and neighbours
Frequently asked questions
What is the atomic number of copernicium?
The atomic number of copernicium is 112, which means every copernicium atom has 112 protons.
What is the electron configuration of copernicium?
The electron configuration of copernicium is [Rn] 5f¹⁴ 6d¹⁰ 7s².
What group and period is copernicium in?
Copernicium is a transition metal in group 12, period 7.
What state is copernicium at room temperature?
The state of copernicium at room temperature is not known, because too little of it has been made.
What is copernicium used for?
Copernicium is used for research only.