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Potassium vs Copernicium


Copernicium vs Potassium


Periodic Table

Symbol
K  
Cn  

Group Number
1  
17
12  
6

Period Number
4  
7  

Block
s block  
d block  

Element Family
Alkali  
Transition Metal  

CAS Number
7440097  
99+
54084263  
7

Space Group Name
Im_ 3m  
-  

Space Group Number
229.00  
2
187.00  
8

Facts

Interesting Facts
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  
Copernicium was first synthesized in 1996 by a German research team.  

Sources
Found in Minerals, Mining  
Synthetically Produced  

History
  
  

Who Discovered
Humphry Davy  
Gesellschaft für Schwerionenforschung  

Discovery
In 1807  
In 1996  

Abundance
  
  

Abundance In Universe
0.00 %  
10
0.00 %  
39

Abundance In Sun
0.00 %  
9
-  

Abundance In Meteorites
0.07 %  
9
0.00 %  
99+

Abundance In Earth's Crust
1.50 %  
6
0.00 %  
99+

Abundance In Oceans
0.04 %  
3
-  

Abundance In Humans
0.20 %  
3
-  

Uses

Uses & Benefits
  • Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
  • Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
  
  • Currently known uses of Copernicium metal are limited to research purpose only.
  

Industrial Uses
Ammunition Industry, Chemical Industry  
-  

Medical Uses
Pharmaceutical Industry  
-  

Other Uses
-  
Research Purposes  

Biological Properties
  
  

Toxicity
Toxic  
-  

Present in Human Body
Yes  
No  

In Blood
1,620.00 Blood/mg dm-3  
2
0.00 Blood/mg dm-3  
40

In Bone
2,100.00 p.p.m.  
3
0.00 p.p.m.  
99+

Physical

Melting Point
63.65 °C  
99+
-  

Boiling Point
774.00 °C  
99+
0.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gray  
-  

Luster
-  
Unknown Luster  

Hardness
  
  

Mohs Hardness
0.40  
25
4.00  
11

Brinell Hardness
0.36 MPa  
99+
240.00 MPa  
99+

Vickers Hardness
100.00 MPa  
99+
3,570.00 MPa  
2

Speed of Sound
2,000.00 m/s  
99+
3,570.00 m/s  
30

Optical Properties
  
  

Refractive Index
1.33  
99+
1.90  
18

Reflectivity
72.00 %  
11
45.00 %  
32

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
K  
Cn  

Isotopes
  
  

Known Isotopes
20  
19
1  
34

Electronegativity
  
  

Pauling Electronegativity
0.82  
99+
1.90  
12

Sanderson Electronegativity
0.45  
99+
1.30  
25

Allred Rochow Electronegativity
0.91  
40
1.90  
1

Mulliken-Jaffe Electronegativity
0.73  
99+
1.90  
13

Allen Electronegativity
0.73  
99+
1.90  
8

Electropositivity
  
  

Pauling Electropositivity
3.18  
3
2.00  
99+

Ionization Energies
  
  

1st Energy Level
418.80 kJ/mol  
99+
1,154.90 kJ/mol  
2

2nd Energy Level
3,052.00 kJ/mol  
5
2,170.00 kJ/mol  
9

3rd Energy Level
4,420.00 kJ/mol  
8
4,245.40 kJ/mol  
9

4th Energy Level
5,877.00 kJ/mol  
18
5,499.70 kJ/mol  
23

5th Energy Level
7,975.00 kJ/mol  
14
3,570.00 kJ/mol  
99+

6th Energy Level
9,590.00 kJ/mol  
19
7,030.00 kJ/mol  
99+

7th Energy level
11,343.00 kJ/mol  
17
3,570.00 kJ/mol  
99+

8th Energy Level
14,944.00 kJ/mol  
13
4,480.00 kJ/mol  
99+

9th Energy Level
16,963.70 kJ/mol  
15
5,850.00 kJ/mol  
99+

10th Energy Level
48,610.00 kJ/mol  
3
4,480.00 kJ/mol  
99+

11th Energy Level
54,490.00 kJ/mol  
4
3,570.00 kJ/mol  
99+

12th Energy Level
60,730.00 kJ/mol  
15
35,700.00 kJ/mol  
26

13th Energy Level
68,950.00 kJ/mol  
4
4,480.00 kJ/mol  
99+

14th Energy Level
75,900.00 kJ/mol  
5
1,157.00 kJ/mol  
99+

15th Energy Level
83,080.00 kJ/mol  
13
35,700.00 kJ/mol  
99+

16th Energy Level
93,400.00 kJ/mol  
7
35,700.00 kJ/mol  
99+

17th Energy Level
99,710.00 kJ/mol  
8
1,157.00 kJ/mol  
16

18th Energy Level
4,196.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+

19th Energy Level
419.20 kJ/mol  
99+
1,157.60 kJ/mol  
14

20th Energy Level
419.00 kJ/mol  
99+
0.00 kJ/mol  
99+

21st Energy Level
419.20 kJ/mol  
99+
1,157.00 kJ/mol  
28

22nd Energy Level
419.00 kJ/mol  
99+
357.00 kJ/mol  
99+

23rd Energy Level
419.20 kJ/mol  
99+
357.60 kJ/mol  
99+

24th Energy Level
419.20 kJ/mol  
99+
357.60 kJ/mol  
99+

25th Energy Level
419.20 kJ/mol  
99+
0.00 kJ/mol  
99+

26th Energy Level
419.20 kJ/mol  
99+
357.60 kJ/mol  
99+

27th Energy Level
419.20 kJ/mol  
99+
0.00 kJ/mol  
99+

28th Energy Level
419.20 kJ/mol  
99+
1,157.00 kJ/mol  
2

29th Energy Level
419.20 kJ/mol  
99+
1,157.00 kJ/mol  
3

30th Energy Level
419.00 kJ/mol  
99+
357.60 kJ/mol  
99+

Electrochemical Equivalent
1.46 g/amp-hr  
99+
3.00 g/amp-hr  
21

Electron Work Function
2.30 eV  
99+
4.90 eV  
12

Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility  
Ionization, Radioactive Isotopes, Radioactivity  

Atomic

Atomic Number
19  
99+
112  
6

Electron Configuration
[Ar] 4s1  
[Rn] 5f14 6d10 7s2  

Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
19  
99+
112  
6

Number of Neutrons
20  
99+
285  
1

Number of Electrons
19  
99+
112  
6

Radius of an Atom
  
  

Atomic Radius
227.00 pm  
4
147.00 pm  
36

Covalent Radius
203.00 pm  
9
122.00 pm  
99+

Van der Waals Radius
275.00 pm  
7
0.00 pm  
99+

Atomic Weight
39.10 amu  
99+
285.00 amu  
5

Atomic Volume
45.46 cm3/mol  
4
17.80 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Aluminium
  

Next Element
Calcium
  
Nihonium
  

Valence Electron Potential
10.40 (-eV)  
99+
0.00 (-eV)  
99+

Lattice Constant
532.80 pm  
13
-  

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.69  
10
1.58  
36

Mechanical

Density
  
  

Density At Room Temperature
0.86 g/cm3  
99+
23.70 g/cm3  
7

Density When Liquid (at m.p.)
0.83 g/cm3  
99+
23.70 g/cm3  
8

Tensile Strength
16.00 MPa  
99+
0.10 MPa  
99+

Viscosity
0.00  
9
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
34
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
1.30 GPa  
99+
31.00 GPa  
25

Bulk Modulus
3.10 GPa  
99+
35.00 GPa  
99+

Young's Modulus
3.53 GPa  
99+
0.00 GPa  
99+

Poisson Ratio
0.35  
9
0.35  
9

Other Mechanical Properties
-  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
0.86  
99+
23.70  
9

Magnetic Ordering
Paramagnetic  
-  

Permeability
0.00 H/m  
13
0.00 H/m  
17

Susceptibility
0.00  
23
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
-  

Resistivity
72.00 nΩ·m  
37
4.90 nΩ·m  
99+

Electrical Conductivity
0.14 106/cm Ω  
16
0.00 106/cm Ω  
99+

Electron Affinity
48.40 kJ/mol  
27
-  

Thermal

Specific Heat
0.75 J/(kg K)  
6
0.10 J/(kg K)  
99+

Molar Heat Capacity
29.60 J/mol·K  
8
13.10 J/mol·K  
99+

Thermal Conductivity
102.50 W/m·K  
15
13.00 W/m·K  
99+

Critical Temperature
2,223.00 K  
14
1,323.00 K  
99+

Thermal Expansion
83.30 µm/(m·K)  
3
13.80 µm/(m·K)  
31

Enthalpy
  
  

Enthalpy of Vaporization
77.50 kJ/mol  
99+
357.20 kJ/mol  
31

Enthalpy of Fusion
2.32 kJ/mol  
99+
-  

Enthalpy of Atomization
89.50 kJ/mol  
99+
-  

Standard Molar Entropy
64.70 J/mol.K  
19
55.00 J/mol.K  
34

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