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Berkelium vs Gallium


Gallium vs Berkelium


Periodic Table

Symbol
Bk   
Ga   

Group Number
Not Available   
13   
5

Period Number
7   
4   

Block
f block   
p block   

Element Family
Actinide   
Post-​Transition   

CAS Number
7440406   
99+
7440553   
32

Space Group Name
P63/mmc   
Cmca   

Space Group Number
194.00   
5
64.00   
9

Facts

Interesting Facts
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
  
  • A gram of Gallium metal can be bought for only three dollars.
  • Gallium metal found in ores of following things Coal, Bauxite, Diaspore, Sphalerite, Germanite and Zinc.
  

Sources
Bombarding Americium with Alpha Particles.   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory   
Lecoq de Boisbaudran   

Discovery
In 1949   
In 1875   

Abundance
  
  

Abundance In Universe
Not Available   
1 * 10-6 %   
16

Abundance In Sun
~-9999 %   
~0.000004 %   
16

Abundance In Meteorites
Not Available   
0.00 %   
16

Abundance In Earth's Crust
Not Available   
0.00 %   
24

Abundance In Oceans
Not Available   
0.00 %   
22

Uses

Uses & Benefits
  • This metal is very rare and has no commercial uses.
  
  • Gallium arsenide is a very important component of many semiconductors and led manufacturing.
  • Gallium nitride is also know as a semiconductor and it is used in Blu-ray technology, mobile smartphones and LED.
  

Industrial Uses
NA   
Electrical Industry, Electronic Industry   

Medical Uses
NA   
Surgical Instruments Manufacturing   

Other Uses
NA   
Alloys   

Biological Properties
  
  

Toxicity
Unknown   
Non Toxic   

Present in Human Body
No   
Yes   

In Blood
0.00 Blood/mg dm-3   
37
0.08 Blood/mg dm-3   
13

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

Physical Properties

Melting Point
986.00 °C   
99+
29.78 °C   
99+

Boiling Point
2,627.00 °C   
40
2,403.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
1.50   
18

Brinell Hardness
Not Available   
56.80 MPa   
99+

Speed of Sound
Not Available   
2,740.00 m/s   
31

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   
Ga   

Isotopes
  
  

Known Isotopes
14   
25
24   
15

Electronegativity
  
  

Pauling Electronegativity
1.30   
32
1.81   
15

Sanderson Electronegativity
Not Available   
2.42   
2

Allred Rochow Electronegativity
1.20   
27
1.82   
1

Mulliken-Jaffe Electronegativity
Not Available   
2.01   
5

Allen Electronegativity
2.70   
1
1.76   
14

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
2.19   
39

Ionization Energies
  
  

1st Energy Level
601.00 kJ/mol   
99+
578.80 kJ/mol   
99+

2nd Energy Level
1,186.00 kJ/mol   
99+
1,979.30 kJ/mol   
13

3rd Energy Level
2,152.00 kJ/mol   
99+
2,963.00 kJ/mol   
28

4th Energy Level
3,434.00 kJ/mol   
99+
6,180.00 kJ/mol   
8

Electrochemical Equivalent
3.07 g/amp-hr   
16
0.87 g/amp-hr   
99+

Electron Work Function
Not Available   
4.20 eV   
23

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

Atomic Properties

Atomic Number
97   
21
31   
99+

Electron Configuration
[Rn] 5f9 7s2   
[Ar] 3d10 4s2 4p1   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Orthorhombic (ORTH)   

Crystal Lattice
DHCP-Crystal-Structure-of-Berkelium.jpg#100   
ORTH-Crystal-Structure-of-Gallium.jpg#100   

Atom
  
  

Number of Protons
97   
21
31   
99+

Number of Neutrons
150   
11
39   
99+

Number of Electrons
97   
21
31   
99+

Radius of an Atom
  
  

Atomic Radius
170.00 pm   
22
135.00 pm   
99+

Covalent Radius
Not Available   
122.00 pm   
99+

Van der Waals Radius
Not Available   
187.00 pm   
32

Atomic Weight
247.00 amu   
18
69.72 amu   
99+

Atomic Volume
Not Available   
11.80 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Curium
  
Zinc
  

Next Element
Rubidium
  

Valence Electron Potential
45.50 (-eV)   
36
69.70 (-eV)   
19

Lattice Constant
341.60 pm   
99+
451.97 pm   
18

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
14.78 g/cm3   
22
5.91 g/cm3   
99+

Density When Liquid (at m.p.)
13.25 g/cm3   
11
6.10 g/cm3   
99+

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
15

Elasticity properties
  
  

Young's Modulus
Not Available   
9.80 GPa   
99+

Poisson Ratio
Not Available   
0.47   
1

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
14.00   
14
5.91   
99+

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Semiconductor   

Resistivity
Not Available   
270.00 nΩ·m   
15

Electrical Conductivity
Not Available   
0.07 106/cm Ω   
29

Electron Affinity
Not Available   
28.90 kJ/mol   
31

Thermal Properties

Specific Heat
Not Available   
0.37 J/(kg K)   
16

Molar Heat Capacity
Not Available   
25.86 J/mol·K   
35

Thermal Conductivity
10.00 W/m·K   
99+
40.60 W/m·K   
34

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
18.00 µm/(m·K)   
24

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
256.10 kJ/mol   
36

Enthalpy of Fusion
Not Available   
5.59 kJ/mol   
99+

Enthalpy of Atomization
Not Available   
276.10 kJ/mol   
39

Standard Molar Entropy
Not Available   
40.80 J/mol.K   
38

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