Seaborgium vs Thallium
Periodic Table
Symbol
Sg
Tl
Group Number
6
12
13
5
Period Number
7
6
Block
d block
p block
Element Family
Transition Metal
Post-Transition
CAS Number
54038812
9
7440280
99+
Space Group Name
Not Available
P63/mmc
Space Group Number
Not Available
194.00
5
Facts
Interesting Facts
- Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
- And other isotopes of Seaborgium have half-lives as short as 3 ms.
- 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
Lawrence Berkeley National Laboratory
William Crookes
Discovery
In 1974
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 Seaborgium metal are limited to research purpose only.
- 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
Not Available
0.00 Blood/mg dm-3
34
In Bone
Not Available
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
Not Available
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
Sg
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
757.40 kJ/mol
21
589.40 kJ/mol
99+
2nd Energy Level
1,732.90 kJ/mol
28
1,971.00 kJ/mol
14
3rd Energy Level
2,483.50 kJ/mol
99+
2,878.00 kJ/mol
32
4th Energy Level
3,415.60 kJ/mol
99+
Not Available
5th Energy Level
4,561.80 kJ/mol
38
Not Available
6th Energy Level
5,715.80 kJ/mol
25
Not Available
Electrochemical Equivalent
Not Available
7.63 g/amp-hr
2
Electron Work Function
Not Available
3.84 eV
28
Other Chemical Properties
NA
Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic Properties
Atomic Number
106
12
81
35
Electron Configuration
[Rn] 5f14 6d2 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
106
12
81
35
Number of Neutrons
157
7
123
20
Number of Electrons
106
12
81
35
Radius of an Atom
Atomic Radius
132.00 pm
99+
170.00 pm
22
Covalent Radius
143.00 pm
99+
145.00 pm
39
Van der Waals Radius
Not Available
196.00 pm
30
Atomic Weight
269.00 amu
9
204.38 amu
31
Atomic Volume
Not Available
17.20 cm3/mol
31
Adjacent Atomic Numbers
Valence Electron Potential
Not Available
9.60 (-eV)
99+
Lattice Constant
Not Available
345.66 pm
99+
Lattice Angles
Unknown
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
1.60
6
Mechanical Properties
Density
Density At Room Temperature
35.00 g/cm3
4
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
|
||
|
||
|
