Periodic System for Chemists

all the data in one app

112

285.00

Cn

Copernicium

Identification

CAS Number: 54084-26-3

Discovery Year: 1996

Discoverer: GSI Helmholtz Centre for Heavy Ion Research

Discovery Location: Germany

Properties

Atomic Mass: 285 →Density: 14 g/cm³ →

Electronic Structure

Electron Config: [Rn] 5f14 6d10 7s2

Block: d

Period: 7 →Group: 12 →

Abundance & Geochemistry

Goldschmidt Class: synthetic

About

Element 112

Isotopes

Cn-283 283 ☢ 4.10 s

Cn-285 285 ☢ 32.0 s