Element Family
Transition Metal
Post-Transition
Space Group Name
P63/mmc
P63/mmc
Interesting Facts
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
Sources
Made by Bombarding Molybdenum with Deuterons
Found As a By-product, Ores of metals, Ores of Minerals
Who Discovered
Emilio Segrè and Carlo Perriero
William Crookes
Discovery
In 1937
In 1861
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available
Uses & Benefits
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
- 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
Alloys, Nuclear Research, Research Purposes
Alloys
Toxicity
Low Toxic
Highly Toxic
Present in Human Body
No
Yes
Physical State
Solid
Solid
Color
Shiny Gray
Silvery White
Mohs Hardness
Not Available
Brinell Hardness
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Pauling Electropositivity
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Corrosion, Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Kr] 4d5 5s2
[Xe] 4f14 5d10 6s2 6p1
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100
BCC-Crystal-Structure-.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Density At Room Temperature
Density When Liquid (at m.p.)
Not Available
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
NA
Ductile, Sectile
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available
Not Available