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Darmstadtium vs Thallium

Darmstadtium
Thallium
Thallium vs Darmstadtium


Periodic Table
Symbol
Ds   
Tl   
Group Number
10   
8
13   
5
Period Number
7   
6   
Block
d block   
p block   
Element Family
Probably Transition   
Post-​Transition   
CAS Number
54083771   
8
7440280   
99+
Space Group Name
Not Available   
P63/mmc   
Space Group Number
Not Available   
194.00   
5
Facts
Interesting Facts
Not Available   
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  
Sources
Synthetically Produced   
Found As a By-product, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung   
William Crookes   
Discovery
In 1994   
In 1861   
Abundance
  
  
Abundance In Universe
Not Available   
5 * 10-9 %   
32
Abundance In Sun
~-9999 %   
~0.0000001 %   
26
Abundance In Meteorites
Not Available   
0.00 %   
99+
Abundance In Earth's Crust
Not Available   
0.00 %   
99+
Abundance In Oceans
Not Available   
0.00 %   
34
Uses
Uses & Benefits
  • Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
  
  • 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
NA   
Chemical Industry   
Medical Uses
NA   
Medical Research   
Other Uses
Research Purposes   
Alloys   
Biological Properties
  
  
Toxicity
Unknown   
Highly Toxic   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
34
In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
33
Physical Properties
Melting Point
Not Available   
303.50 °C   
99+
Boiling Point
Not Available   
1,457.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Unknown   
Silvery White   
Luster
Unknown Luster   
NA   
Hardness
  
  
Mohs Hardness
Not Available   
1.20   
20
Brinell Hardness
Not Available   
26.50 MPa   
99+
Speed of Sound
5,090.00 m/s   
9
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
Ds   
Tl   
Isotopes
  
  
Known Isotopes
9   
29
32   
7
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.62   
21
Sanderson Electronegativity
Not Available   
2.25   
5
Allred Rochow Electronegativity
Not Available   
1.44   
17
Mulliken-Jaffe Electronegativity
Not Available   
1.96   
6
Allen Electronegativity
Not Available   
1.79   
13
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.38   
33
Ionization Energies
  
  
1st Energy Level
955.20 kJ/mol   
5
589.40 kJ/mol   
99+
2nd Energy Level
1,891.10 kJ/mol   
16
1,971.00 kJ/mol   
14
3rd Energy Level
3,029.60 kJ/mol   
25
2,878.00 kJ/mol   
32
4th Energy Level
3,955.90 kJ/mol   
40
Not Available   
5th Energy Level
5,113.70 kJ/mol   
33
Not Available   
Electrochemical Equivalent
Not Available   
7.63 g/amp-hr   
2
Electron Work Function
Not Available   
3.84 eV   
28
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
110   
8
81   
35
Electron Configuration
[Rn] 5f14 6d8 7s2   
[Xe] 4f14 5d10 6s2 6p1   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
110   
8
81   
35
Number of Neutrons
161   
3
123   
20
Number of Electrons
110   
8
81   
35
Radius of an Atom
  
  
Atomic Radius
132.00 pm   
99+
170.00 pm   
22
Covalent Radius
128.00 pm   
99+
145.00 pm   
39
Van der Waals Radius
Not Available   
196.00 pm   
30
Atomic Weight
281.00 amu   
6
204.38 amu   
31
Atomic Volume
Not Available   
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
Previous Element
Meitnerium
  
Mercury
  
Next Element
Roentgenium
  
Lead
  
Valence Electron Potential
Not Available   
9.60 (-eV)   
99+
Lattice Constant
Not Available   
345.66 pm   
99+
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
6
Mechanical Properties
Density
  
  
Density At Room Temperature
Not Available   
11.85 g/cm3   
31
Density When Liquid (at m.p.)
Not Available   
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
Elasticity properties
  
  
Shear Modulus
Not Available   
2.80 GPa   
99+
Bulk Modulus
Not Available   
43.00 GPa   
28
Young's Modulus
Not Available   
8.00 GPa   
99+
Poisson Ratio
Not Available   
0.45   
2
Other Mechanical Properties
Unknown   
Ductile, Sectile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
11.85   
22
Magnetic Ordering
Unknown   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Conductor   
Resistivity
Not Available   
0.18 nΩ·m   
99+
Electrical Conductivity
Not Available   
0.06 106/cm Ω   
32
Electron Affinity
Not Available   
19.20 kJ/mol   
32
Thermal Properties
Specific Heat
Not Available   
0.13 J/(kg K)   
39
Molar Heat Capacity
Not Available   
26.32 J/mol·K   
29
Thermal Conductivity
Not Available   
46.10 W/m·K   
33
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
29.90 µm/(m·K)   
12
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
162.10 kJ/mol   
99+
Enthalpy of Fusion
Not Available   
4.27 kJ/mol   
99+
Enthalpy of Atomization
Not Available   
179.90 kJ/mol   
99+
Standard Molar Entropy
Not Available   
64.20 J/mol.K   
19
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