Copernicium Element (Periodic Table)

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Copernicium

Copernicium (Cn) is a chemical element of the periodic table, located in the group 12 and the period 7, and has the atomic number 112. It is named after the mathematician, Nicolaus Copernicus. It is a transuranium element and is counted as one of the radioactive elements.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
 1
H
 2
He
2
 3
Li
 4
Be
 5
B
 6
C
 7
N
 8
O
 9
F
 10
Ne
3
 11
Na
 12
Mg
 13
Al
 14
Si
 15
P
 16
S
 17
Cl
 18
Ar
4
 19
K
 20
Ca
 21
Sc
 22
Ti
 23
V
 24
Cr
 25
Mn
 26
Fe
 27
Co
 28
Ni
 29
Cu
 30
Zn
 31
Ga
 32
Ge
 33
As
 34
Se
 35
Br
 36
Kr
5
 37
Rb
 38
Sr
 39
Y
 40
Zr
 41
Nb
 42
Mo
 43
Tc
 44
Ru
 45
Rh
 46
Pd
 47
Ag
 48
Cd
 49
In
 50
Sn
 51
Sb
 52
Te
 53
I
 54
Xe
6
 55
Cs
 56
Ba
 72
Hf
 73
Ta
 74
W
 75
Re
 76
Os
 77
Ir
 78
Pt
 79
Au
 80
Hg
 81
Tl
 82
Pb
 83
Bi
 84
Po
 85
At
 86
Rn
7
 87
Fr
 88
Ra
 104
Rf
 105
Db
 106
Sg
 107
Bh
 108
Hs
 109
Mt
 110
Ds
 111
Rg
 112
Cn
 113
Nh
 114
Fl
 115
Mc
 116
Lv
 117
Ts
 118
Og
57
La
 58
Ce
 59
Pr
 60
Nd
 61
Pm
 62
Sm
 63
Eu
 64
Gd
 65
Tb
 66
Dy
 67
Ho
 68
Er
 69
Tm
 70
Yb
 71
Lu
89
Ac
 90
Th
 91
Pa
 92
U
 93
Np
 94
Pu
 95
Am
 96
Cm
 97
Bk
 98
Cf
 99
Es
 100
Fm
 101
Md
 102
No
 103
Lr
– d block

FAQs on Copernicium Element

Copernicium
‣ Who discovered copernicium? When was copernicium discovered?

Discovery: Gesellschaft für Schwerionenforschung (1996)
‣ Where is copernicium on the periodic table?

Copernicium Periodic Table

Location: Copernicium is found in the seventh row of the periodic table, next to the roentgenium element.
‣ What is the atomic number of copernicium?

Atomic number (Z): 112
‣ What is the symbol of copernicium?

Symbol: Cn
‣ Copernicium atomic weight: [285]
‣ What block is copernicium in the periodic table?

Block: d-block
‣ What group is copernicium in the periodic table?

Group: 12
‣ What period is copernicium in the periodic table?

Period: 7
‣ Copernicium atomic radius: calculated: 147 pm (predicted)
‣ Copernicium covalent radius: 122 pm (estimated)
‣ What is copernicium melting point?

Melting point: 283 ± 11 K (10 ± 11 °C, 50 ± 20 °F) (predicted)
‣ What is copernicium boiling point?

Boiling point: 340 ± 10 K (67 ± 10 °C, 153 ± 18 °F) (predicted)
‣ Copernicium triple point: 283 K, 25 kPa (predicted)
‣ How many electron shells does copernicium have?

Electrons per shell: 2, 8, 18, 32, 32, 18, 2 (predicted)
‣ What is the full electron configuration for copernicium?

Electron configuration: [Rn] 5f14 6d10 7s2 (predicted)
‣ Copernicium ionization energies:
1st: 1155 kJ/mol
2nd: 2170 kJ/mol
3rd: 3160 kJ/mol
(all estimated)
‣ Is copernicium a liquid at room temperature?

Phase (at r.t): liquid (predicted)
‣ What is the density of the element copernicium?

Density (near r.t): 14.0 g/cm3 (predicted)
‣ Copernicium natural occurrence: synthetic
‣ Copernicium oxidation state: 0, +1, +2
‣ Copernicium crystal structure: hexagonal close-packed (hcp) (predicted)
‣ Copernicium CAS number: 54084-26-3

‣ How many isotopes does copernicium have?

Main isotopes of copernicium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
277Cnsyn0.69 msα273Ds
281Cnsyn0.18 sα277Ds
282Cnsyn0.91 msSF
283Cnsyn4.2 s90 % α
10 % SF
EC?		279Ds
–
283Rg
284Cnsyn98 ms98 % SF
2 % α		–
280Ds
285Cnsyn28 sα281Ds
286Cnsyn8.45 s ?SF–

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