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Gallium vs Uranium

Gallium
Uranium
Uranium vs Gallium


Periodic Table
Symbol
Ga  
U  
Group Number
13  
5
0  
18
Period Number
4  
7  
Block
p block  
f block  
Element Family
Post-​Transition  
Actinide  
CAS Number
7440553  
32
7440611  
28
Space Group Name
Cmca  
Cmcm  
Space Group Number
64.00  
9
63.00  
10
Facts
Interesting Facts
  • 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.
  
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Mining, Ores of Minerals  
History
  
  
Who Discovered
Lecoq de Boisbaudran  
Not Available  
Discovery
In 1875  
In 1789  
Abundance
  
  
Abundance In Universe
1 * 10-6 %  
16
2 * 10-8 %  
29
Abundance In Sun
~0.000004 %  
16
~0.0000001 %  
26
Abundance In Meteorites
0.00 %  
16
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
24
0.00 %  
36
Abundance In Oceans
0.00 %  
22
0.00 %  
11
Uses
Uses & Benefits
  • 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.
  
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
Industrial Uses
Electrical Industry, Electronic Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
Surgical Instruments Manufacturing  
NA  
Other Uses
Alloys  
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Non Toxic  
Toxic  
Present in Human Body
Yes  
No  
In Blood
0.08 Blood/mg dm-3  
13
Not Available  
Physical Properties
Melting Point
29.78 °C  
99+
1,132.00 °C  
39
Boiling Point
2,403.00 °C  
99+
3,818.00 °C  
16
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
1.50  
18
6.00  
6
Brinell Hardness
56.80 MPa  
99+
2,350.00 MPa  
2
Vickers Hardness
Not Available  
1,960.00 MPa  
2
Speed of Sound
2,740.00 m/s  
31
3,155.00 m/s  
25
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
Ga  
U  
Isotopes
  
  
Known Isotopes
24  
15
25  
14
Electronegativity
  
  
Pauling Electronegativity
1.81  
15
1.38  
28
Sanderson Electronegativity
2.42  
2
Not Available  
Allred Rochow Electronegativity
1.82  
1
1.22  
26
Mulliken-Jaffe Electronegativity
2.01  
5
Not Available  
Allen Electronegativity
1.76  
14
Not Available  
Electropositivity
  
  
Pauling Electropositivity
2.19  
39
2.62  
26
Ionization Energies
  
  
1st Energy Level
578.80 kJ/mol  
99+
597.60 kJ/mol  
99+
2nd Energy Level
1,979.30 kJ/mol  
13
1,420.00 kJ/mol  
99+
3rd Energy Level
2,963.00 kJ/mol  
28
1,900.00 kJ/mol  
99+
4th Energy Level
6,180.00 kJ/mol  
8
3,145.00 kJ/mol  
99+
Electrochemical Equivalent
0.87 g/amp-hr  
99+
1.48 g/amp-hr  
99+
Electron Work Function
4.20 eV  
23
3.63 eV  
30
Other Chemical Properties
Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic Properties
Atomic Number
31  
99+
92  
26
Electron Configuration
[Ar] 3d10 4s2 4p1  
[Rn] 5f3 6d1 7s2  
Crystal Structure
Orthorhombic (ORTH)  
Orthorhombic (ORTH)  
Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100  
ORTH-Crystal-Structure-of-Uranium.jpg#100  
Atom
  
  
Number of Protons
31  
99+
92  
26
Number of Neutrons
39  
99+
146  
13
Number of Electrons
31  
99+
92  
26
Radius of an Atom
  
  
Atomic Radius
135.00 pm  
99+
156.00 pm  
29
Covalent Radius
122.00 pm  
99+
196.00 pm  
14
Van der Waals Radius
187.00 pm  
32
186.00 pm  
33
Atomic Weight
69.72 amu  
99+
238.03 amu  
21
Atomic Volume
11.80 cm3/mol  
99+
12.59 cm3/mol  
40
Adjacent Atomic Numbers
  
  
Previous Element
Zinc
  
Protactinium
  
Next Element
Rubidium
  
Neptunium
  
Valence Electron Potential
69.70 (-eV)  
19
170.00 (-eV)  
4
Lattice Constant
451.97 pm  
18
295.08 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
Not Available  
Not Available  
Mechanical Properties
Density
  
  
Density At Room Temperature
5.91 g/cm3  
99+
19.10 g/cm3  
17
Density When Liquid (at m.p.)
6.10 g/cm3  
99+
17.30 g/cm3  
7
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
15
Not Available  
Vapor Pressure at 2000 K
Not Available  
0.01 (Pa)  
20
Elasticity properties
  
  
Shear Modulus
Not Available  
111.00 GPa  
10
Bulk Modulus
Not Available  
100.00 GPa  
16
Young's Modulus
9.80 GPa  
99+
208.00 GPa  
10
Poisson Ratio
0.47  
1
0.23  
30
Other Mechanical Properties
NA  
Ductile, Malleable  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
5.91  
99+
18.80  
10
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Semiconductor  
Poor Conductor  
Resistivity
270.00 nΩ·m  
15
0.28 nΩ·m  
99+
Electrical Conductivity
0.07 106/cm Ω  
29
0.04 106/cm Ω  
37
Electron Affinity
28.90 kJ/mol  
31
Not Available  
Thermal Properties
Specific Heat
0.37 J/(kg K)  
16
0.12 J/(kg K)  
40
Molar Heat Capacity
25.86 J/mol·K  
35
27.67 J/mol·K  
15
Thermal Conductivity
40.60 W/m·K  
34
27.50 W/m·K  
40
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
18.00 µm/(m·K)  
24
13.90 µm/(m·K)  
27
Enthalpy
  
  
Enthalpy of Vaporization
256.10 kJ/mol  
36
477.00 kJ/mol  
13
Enthalpy of Fusion
5.59 kJ/mol  
99+
15.48 kJ/mol  
19
Enthalpy of Atomization
276.10 kJ/mol  
39
489.50 kJ/mol  
14
Standard Molar Entropy
40.80 J/mol.K  
38
50.20 J/mol.K  
31
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