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Uranium Thallium Comparison

Uranium
Thallium
Thallium Uranium comparison


Periodic Table
Symbol
U   
Tl   
Group Number
0   
18
13   
5
Period Number
7   
6   
Block
f block   
p block   
Element Family
Actinide   
Post-​Transition   
CAS Number
7440611   
28
7440280   
99+
Space Group Name
Cmcm   
P63/mmc   
Space Group Number
63.00   
10
194.00   
5
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  
Sources
Earth's crust, Mining, Ores of Minerals   
Found As a By-product, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Not Available   
William Crookes   
Discovery
In 1789   
In 1861   
Abundance
  
  
Abundance In Universe
2 * 10-8 %   
29
5 * 10-9 %   
32
Abundance In Sun
~0.0000001 %   
26
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
99+
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
36
0.00 %   
99+
Abundance In Oceans
0.00 %   
11
0.00 %   
34
Uses
Uses & Benefits
  • 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.
  
  • Thallium is a toxic metal and hence it has limited uses. Thallium metal is mostly used for producing photoelectric cells.
  • In thermometer’s mercury alloy has 8% of thallium, as it has a melting point lower than 20°C.
  
Industrial Uses
Ammunition Industry, Chemical Industry   
Chemical Industry   
Medical Uses
NA   
Medical Research   
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Alloys   
Biological Properties
  
  
Toxicity
Toxic   
Highly Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
0.00 Blood/mg dm-3   
34
In Bone
Not Available   
0.00 p.p.m.   
33
Physical Properties
Melting Point
1,132.00 °C   
39
303.50 °C   
99+
Boiling Point
3,818.00 °C   
16
1,457.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gray   
Silvery White   
Luster
Metallic   
NA   
Hardness
  
  
Mohs Hardness
6.00   
6
1.20   
20
Brinell Hardness
2,350.00 MPa   
2
26.50 MPa   
99+
Vickers Hardness
1,960.00 MPa   
2
Not Available   
Speed of Sound
3,155.00 m/s   
25
818.00 m/s   
99+
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
U   
Tl   
Isotopes
  
  
Known Isotopes
25   
14
32   
7
Electronegativity
  
  
Pauling Electronegativity
1.38   
28
1.62   
21
Sanderson Electronegativity
Not Available   
2.25   
5
Allred Rochow Electronegativity
1.22   
26
1.44   
17
Mulliken-Jaffe Electronegativity
Not Available   
1.96   
6
Allen Electronegativity
Not Available   
1.79   
13
Electropositivity
  
  
Pauling Electropositivity
2.62   
26
2.38   
33
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol   
99+
589.40 kJ/mol   
99+
2nd Energy Level
1,420.00 kJ/mol   
99+
1,971.00 kJ/mol   
14
3rd Energy Level
1,900.00 kJ/mol   
99+
2,878.00 kJ/mol   
32
4th Energy Level
3,145.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
1.48 g/amp-hr   
99+
7.63 g/amp-hr   
2
Electron Work Function
3.63 eV   
30
3.84 eV   
28
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
92   
26
81   
35
Electron Configuration
[Rn] 5f3 6d1 7s2   
[Xe] 4f14 5d10 6s2 6p1   
Crystal Structure
Orthorhombic (ORTH)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
92   
26
81   
35
Number of Neutrons
146   
13
123   
20
Number of Electrons
92   
26
81   
35
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
170.00 pm   
22
Covalent Radius
196.00 pm   
14
145.00 pm   
39
Van der Waals Radius
186.00 pm   
33
196.00 pm   
30
Atomic Weight
238.03 amu   
21
204.38 amu   
31
Atomic Volume
12.59 cm3/mol   
40
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Mercury
  
Next Element
Neptunium
  
Lead
  
Valence Electron Potential
170.00 (-eV)   
4
9.60 (-eV)   
99+
Lattice Constant
295.08 pm   
99+
345.66 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
6
Mechanical Properties
Density
  
  
Density At Room Temperature
19.10 g/cm3   
17
11.85 g/cm3   
31
Density When Liquid (at m.p.)
17.30 g/cm3   
7
11.22 g/cm3   
13
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
16.90 (Pa)   
5
Vapor Pressure at 2000 K
0.01 (Pa)   
20
Not Available   
Elasticity properties
  
  
Shear Modulus
111.00 GPa   
10
2.80 GPa   
99+
Bulk Modulus
100.00 GPa   
16
43.00 GPa   
28
Young's Modulus
208.00 GPa   
10
8.00 GPa   
99+
Poisson Ratio
0.23   
30
0.45   
2
Other Mechanical Properties
Ductile, Malleable   
Ductile, Sectile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
18.80   
10
11.85   
22
Magnetic Ordering
Paramagnetic   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Poor Conductor   
Conductor   
Resistivity
0.28 nΩ·m   
99+
0.18 nΩ·m   
99+
Electrical Conductivity
0.04 106/cm Ω   
37
0.06 106/cm Ω   
32
Electron Affinity
Not Available   
19.20 kJ/mol   
32
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.13 J/(kg K)   
39
Molar Heat Capacity
27.67 J/mol·K   
15
26.32 J/mol·K   
29
Thermal Conductivity
27.50 W/m·K   
40
46.10 W/m·K   
33
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
13.90 µm/(m·K)   
27
29.90 µm/(m·K)   
12
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol   
13
162.10 kJ/mol   
99+
Enthalpy of Fusion
15.48 kJ/mol   
19
4.27 kJ/mol   
99+
Enthalpy of Atomization
489.50 kJ/mol   
14
179.90 kJ/mol   
99+
Standard Molar Entropy
50.20 J/mol.K   
31
64.20 J/mol.K   
19
Summary >>
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