Copernicium

Copernicium (Cn)

chemical element with atomic number 112
Atomic Number112
Atomic Weight285
mass number276
Group12
Period7
Blockd
proton112 p+
neutron164 n0
electron112 e-
Animated Bohr model of Cn (Copernicium)

Āhuatanga Ōkiko

Atomic Radius
molar volume
covalent radius
122 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density

Chemical Property

energy
proton affinity
electron affinity
ionization energy
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
electron
electron shell2, 8, 18, 32, 32, 18, 2
Bohr model: Cn (Copernicium)
valence electron2
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 number2
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterLiquid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
color
Colorless
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure ()
lattice constant
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryTransition metals, Transition metals
CAS GroupIIB
IUPAC GroupIIB
Glawe Number
Mendeleev Number80
Pettifor Number
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
28 ± 2 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
quantum number1S0
space group ()

Isotopes of Copernicium

Stable Isotopes0
Unstable Isotopes13
Natural Isotopes0

276Cn

mass number276
neutron number164
relative atomic mass
276.161418 ± 0.000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention
parity+

decay modeintensity
α (α emission)
SF (spontaneous fission)

277Cn

mass number277
neutron number165
relative atomic mass
277.163535 ± 0.000165 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
790 ± 330 us
spin
nuclear quadrupole moment
time of discovery or invention1996
parity

decay modeintensity
α (α emission)100%

278Cn

mass number278
neutron number166
relative atomic mass
278.164083 ± 0.00047 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention
parity+

decay modeintensity
α (α emission)
SF (spontaneous fission)

279Cn

mass number279
neutron number167
relative atomic mass
279.166422 ± 0.000424 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
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
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention
parity+

decay modeintensity
α (α emission)
SF (spontaneous fission)

281Cn

mass number281
neutron number169
relative atomic mass
281.169563 ± 0.000427 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
180 ± 80 ms
spin
nuclear quadrupole moment
time of discovery or invention2010
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
natural abundance
radioactivity☢️ radioactive element
half-life
1.1 ± 0.3 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2004
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
natural abundance
radioactivity☢️ radioactive element
half-life
4.7 ± 0.8 s
spin
nuclear quadrupole moment
time of discovery or invention2004
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
natural abundance
radioactivity☢️ radioactive element
half-life
102 ± 17 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2004
parity+

decay modeintensity
SF (spontaneous fission)100%

285Cn

mass number285
neutron number173
relative atomic mass
285.177227 ± 0.000544 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
30 ± 8 s
spin
nuclear quadrupole moment
time of discovery or invention2004
parity

decay modeintensity
α (α emission)100%

286Cn

mass number286
neutron number174
relative atomic mass
286.178691 ± 0.000751 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
30 ± 30 s
spin0
nuclear quadrupole moment
0
time of discovery or invention2016
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
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
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
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention
parity+

decay modeintensity
α (α emission)
SF (spontaneous fission)
Elektronskal 112

kōrero nehe

discoverer or inventorGSI Helmholtz Centre for Heavy Ion Research
location of discoveryGermany
time of discovery or invention1996
etymologyNamed in honor of the astronomer Nicolaus Copernicus.
pronunciation

source

Abundance
Abundance in Earth's crust
natural abundance (Moana nui)
natural abundance (human body)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Te Rā)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants