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Berkelium vs Nihonium


Nihonium vs Berkelium


Periodic Table

Symbol
Bk   
Nh   

Group Number
Not Available   
13   
5

Period Number
7   
7   

Block
f block   
p block   

Element Family
Actinide   
Probably Post-​Transition   

CAS Number
7440406   
99+
54084707   
6

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
  
Not Available   

Sources
Bombarding Americium with Alpha Particles.   
Synthetically Produced   

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory   
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   

Discovery
In 1949   
In 2003   

Abundance
  
  

Uses

Uses & Benefits
  • This metal is very rare and has no commercial uses.
  
  • Currently known uses of Ununtrium metal are limited to research purpose only.
  

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
NA   
Research Purposes   

Biological Properties
  
  

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
Not Available   

In Bone
0.00 p.p.m.   
36
Not Available   

Physical Properties

Melting Point
986.00 °C   
99+
430.00 °C   
99+

Boiling Point
2,627.00 °C   
40
1,130.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Unknown   

Luster
Metallic   
Unknown Luster   

Hardness
  
  

Speed of Sound
Not Available   
Not Available   

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Bk   
Nh   

Isotopes
  
  

Known Isotopes
14   
25
7   
31

Electronegativity
  
  

Pauling Electronegativity
1.30   
32
Not Available   

Allred Rochow Electronegativity
1.20   
27
Not Available   

Allen Electronegativity
2.70   
1
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
Not Available   

Ionization Energies
  
  

1st Energy Level
601.00 kJ/mol   
99+
704.90 kJ/mol   
34

2nd Energy Level
1,186.00 kJ/mol   
99+
2,238.50 kJ/mol   
7

3rd Energy Level
2,152.00 kJ/mol   
99+
3,023.30 kJ/mol   
26

4th Energy Level
3,434.00 kJ/mol   
99+
4,351.50 kJ/mol   
29

5th Energy Level
Not Available   
5,692.60 kJ/mol   
28

Electrochemical Equivalent
3.07 g/amp-hr   
16
Not Available   

Electron Work Function
Not Available   
Not Available   

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

Atomic Properties

Atomic Number
97   
21
113   
5

Electron Configuration
[Rn] 5f9 7s2   
[Rn] 5f14 6d10 7s2 7p1   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Not Known   

Crystal Lattice
DHCP-Crystal-Structure-of-Berkelium.jpg#100   
Unknown-Crystal-Structure-of-Ununtrium.jpg#100   

Atom
  
  

Number of Protons
97   
21
113   
5

Number of Neutrons
150   
11
150   
11

Number of Electrons
97   
21
113   
5

Radius of an Atom
  
  

Atomic Radius
170.00 pm   
22
Not Available   

Atomic Weight
247.00 amu   
18
286.00 amu   
4

Atomic Volume
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Curium
  

Next Element
Flerovium
  

Valence Electron Potential
45.50 (-eV)   
36
Not Available   

Lattice Constant
341.60 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
14.78 g/cm3   
22
16.00 g/cm3   
19

Density When Liquid (at m.p.)
13.25 g/cm3   
11
Not Available   

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
NA   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
14.00   
14
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Thermal Properties

Specific Heat
Not Available   
Not Available   

Molar Heat Capacity
Not Available   
Not Available   

Thermal Conductivity
10.00 W/m·K   
99+
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
Not Available   

Enthalpy
  
  

Standard Molar Entropy
Not Available   
Not Available   

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