Gallium Uranium Comparison
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
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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