112Cn285
Copernicium
Unknown properties · element 112 · group 12, period 7
Quick facts
| Symbol | Cn |
|---|---|
| Atomic number | 112 |
| Relative atomic mass | 285 |
| Category | Unknown properties |
| Position | group 12, period 7 |
| State at 20 °C | Unknown (too few atoms have been made) |
| Melting point | — |
| Boiling point | — |
| Density | — |
| Electronegativity | — |
| Electron configuration | [Rn] 5f14 6d10 7s2 |
About Copernicium
Copernicium has the symbol Cn and atomic number 112, which means every copernicium atom has 112 protons in its nucleus and, in a neutral atom, 112 electrons. At room temperature it is unknown (too few atoms have been made).
Only a few atoms of this element have ever been made, in particle accelerators, so most of its properties are predicted rather than measured.
Explore it
See where copernicium sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.