Periodic System for Chemists
Table
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

Related Elements

Category

Transition Metals

Same Group

30 Zn Zinc48 Cd Cadmium80 Hg Mercury

Same Period

109 Mt Meitnerium110 Ds Darmstadtium111 Rg Roentgenium113 Nh Nihonium114 Fl Flerovium115 Mc Moscovium

Periodic Trends

Electronegativity →Atomic Radius →Density →Melting Point →