Copernicium

Copernicium (Cn)

Copernicium is the 112th element in the periodic table and has a symbol of Cn and atomic number of 112. It has an atomic weight of (285) and a mass number of 276. Copernicium has one hundred twelve protons and one hundred sixty-four neutrons in its nucleus, and one hundred twelve electrons in seven shells. It is located in group twelve, period seven and block d of the periodic table.
Atomic Number112
Atomic Weight285
Mass Number276
Group12
Period7
Blockd
Protons112 p+
Neutrons164 n0
Electrons112 e-
Animated Bohr Model of Cn (Copernicium)

Properties

Physical Properties
Atomic Radius
Molar Volume
Covalent Radius
122 pm
Metallic Radius
Ionic Radius
Crystal Radius
Van der Waals Radius
Density
Energy
Proton Affinity
Electron Affinity
Ionization Energy
Heat of Vaporization
Heat of Fusion
Heat of Formation
Electrons
Electron Shells2, 8, 18, 32, 32, 18, 2
Bohr Model: Cn (Copernicium)
Valence Electrons2
Lewis Structure: Cn (Copernicium)
Electron Configuration[Rn] 5f14 6d10 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f14 6d10 7s2
Enhanced Bohr Model of Cn (Copernicium)
Orbital Diagram of Cn (Copernicium)
Oxidation States2
Electronegativity
Electrophilicity Index
States of Matter
PhaseLiquid
Gas Phase
Boiling Point
Melting Point
Critical Pressure
Critical Temperature
Triple Point
Visual

Copernicium is a Colorless.

Color
Colorless
Appearance
Refractive Index
Thermodynamic Properties
Thermal Conductivity
Thermal Expansion
Molar Heat Capacity
Specific Heat Capacity
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type
Electrical Conductivity
Electrical Resistivity
Superconducting Point
Magnetism
Type
Magnetic Susceptibility (Mass)
Magnetic Susceptibility (Molar)
Magnetic Susceptibility (Volume)
Magnetic Ordering
Curie Point
Neel Point
Structure

The lattice angles of Copernicium is .

Crystal Structure ()
Lattice Constant
Lattice Angles
Mechanical Properties
Hardness
Bulk Modulus
Shear Modulus
Young's Modulus
Poisson Ratio
Speed of Sound
Classification

The CAS Group of Copernicium is IIB. The IUPAC Group of Cn is IIB. The Mendeleev Number of Element 112 is 80. The Goldschmidt Class of Copernicium (Cn) is synthetic.

CategoryTransition metals, Transition metals
CAS GroupIIB
IUPAC GroupIIB
Glawe Number
Mendeleev Number80
Pettifor Number
Geochemical Class
Goldschmidt Classsynthetic
Other

The Dipole Polarizability of Copernicium is 28 plus or minus 2 a₀. The Allotropes of Cn is . The Quantum Numbers of Element 112 is 1S0. The Space Group of Copernicium (Cn) is ().

Gas Basicity
Dipole Polarizability
28 ± 2 a₀
C6 Dispersion Coefficient
Allotropes
Neutron Cross Section
Neutron Mass Absorption
Quantum Numbers1S0
Space Group ()

Isotopes of Copernicium

Stable Isotopes0
Unstable Isotopes13
Radioactive Isotopes13

276Cn

Mass Number276
Neutron Number164
Relative Atomic Mass
276.161418 ± 0.000537 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

Decay ModeIntensity
α (α emission)
SF (spontaneous fission)

277Cn

Mass Number277
Neutron Number165
Relative Atomic Mass
277.163535 ± 0.000165 Da
G-Factor
Abundance
Radioactivity☢️ Radioactive
Half Life
790 ± 330 us
Spin
Quadrupole Moment
Discovery Year1996
Parity

Decay ModeIntensity
α (α emission)100%

278Cn

Mass Number278
Neutron Number166
Relative Atomic Mass
278.164083 ± 0.00047 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

Decay ModeIntensity
α (α emission)
SF (spontaneous fission)

279Cn

Mass Number279
Neutron Number167
Relative Atomic Mass
279.166422 ± 0.000424 Da
G-Factor
Abundance
Radioactivity☢️ Radioactive
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

Decay ModeIntensity
α (α emission)
SF (spontaneous fission)

280Cn

Mass Number280
Neutron Number168
Relative Atomic Mass
280.167102 ± 0.000626 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

Decay ModeIntensity
α (α emission)
SF (spontaneous fission)

281Cn

Mass Number281
Neutron Number169
Relative Atomic Mass
281.169563 ± 0.000427 Da
G-Factor
Abundance
Radioactivity☢️ Radioactive
Half Life
180 ± 80 ms
Spin
Quadrupole Moment
Discovery Year2010
Parity

Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)

282Cn

Mass Number282
Neutron Number170
Relative Atomic Mass
282.170507 ± 0.000588 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
1.1 ± 0.3 ms
Spin0
Quadrupole Moment
0
Discovery Year2004
Parity+

Decay ModeIntensity
SF (spontaneous fission)100%
α (α emission)

283Cn

Mass Number283
Neutron Number171
Relative Atomic Mass
283.173202 ± 0.00066 Da
G-Factor
Abundance
Radioactivity☢️ Radioactive
Half Life
4.7 ± 0.8 s
Spin
Quadrupole Moment
Discovery Year2004
Parity

Decay ModeIntensity
α (α emission)81%
SF (spontaneous fission)19%

284Cn

Mass Number284
Neutron Number172
Relative Atomic Mass
284.17436 ± 0.000819 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
102 ± 17 ms
Spin0
Quadrupole Moment
0
Discovery Year2004
Parity+

Decay ModeIntensity
SF (spontaneous fission)100%

285Cn

Mass Number285
Neutron Number173
Relative Atomic Mass
285.177227 ± 0.000544 Da
G-Factor
Abundance
Radioactivity☢️ Radioactive
Half Life
30 ± 8 s
Spin
Quadrupole Moment
Discovery Year2004
Parity

Decay ModeIntensity
α (α emission)100%

286Cn

Mass Number286
Neutron Number174
Relative Atomic Mass
286.178691 ± 0.000751 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
30 ± 30 s
Spin0
Quadrupole Moment
0
Discovery Year2016
Parity+

Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)

287Cn

Mass Number287
Neutron Number175
Relative Atomic Mass
287.181826 ± 0.000751 Da
G-Factor
Abundance
Radioactivity☢️ Radioactive
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

Decay ModeIntensity
α (α emission)
SF (spontaneous fission)

288Cn

Mass Number288
Neutron Number176
Relative Atomic Mass
288.183501 ± 0.000751 Da
G-Factor
0
Abundance
Radioactivity☢️ Radioactive
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

Decay ModeIntensity
α (α emission)
SF (spontaneous fission)
Elektronskal 112

History

Copernicium was first created on February 9, 1996, at the Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt, Germany, by Sigurd Hofmann, Victor Ninov et al. This element was created by firing accelerated zinc-70 nuclei at a target made of lead-208 nuclei in a heavy ion accelerator. A single atom of copernicium was produced with a mass number of 277. Named after the astronomer Nicolaus Copernicus

DiscoverersGSI Helmholtz Centre for Heavy Ion Research
Discovery LocationGermany
Discovery Year1996
Etymology (Name Origin)Named in honor of the astronomer Nicolaus Copernicus.
Pronunciation
Copernicium is harmful due to its radioactivity
Copernicium has no stable or naturally-occurring isotopes

Uses

Copernicium is used for scientific research purposes only. It has no significant commercial applications.

Sources

Made by bombarding lead-208 with zinc-70.

Abundance
Abundance in Earth's crust
Natural Abundance (Oceans)
Natural Abundance (Human Body)
0 %
Natural Abundance (Meteor)
0 %
Natural Abundance (Sun)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants

Also Known As

  • Cn
  • element 112
  • ununbium
  • Uub
  • ununnunium

Translations

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