Copernicium Element (Periodic Table)

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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