Symbol
Ta
  
Nh
  
Period Number
6
  
7
  
Block
d block
  
p block
  
Element Family
Transition Metal
  
Probably Post-Transition
  
Space Group Name
Im_ 3m
  
Not Available
  
Interesting Facts
- Tantalum metal is known as corrosion resistance.
- Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
  
Not Available
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Synthetically Produced
  
History
  
  
Who Discovered
Anders Gustaf Ekeberg
  
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
  
Discovery
In 1802
  
In 2003
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
Uses & Benefits
- Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
- Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.
  
- Currently known uses of Ununtrium metal are limited to research purpose only.
  
Industrial Uses
Electrical Industry, Electronic Industry
  
NA
  
Medical Uses
NA
  
NA
  
Other Uses
Alloys
  
Research Purposes
  
Biological Properties
  
  
Toxicity
Low Toxic
  
Unknown
  
Present in Human Body
Yes
  
No
  
In Bone
0.03 p.p.m.
  
28
Not Available
  
Boiling Point
1,130.00 °C
  
99+
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Gray Blue
  
Unknown
  
Luster
Metallic
  
Unknown Luster
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
3,400.00 m/s
  
22
Not Available
  
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Ta
  
Nh
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
761.00 kJ/mol
  
18
704.90 kJ/mol
  
34
2nd Energy Level
1,500.00 kJ/mol
  
40
2,238.50 kJ/mol
  
7
3rd Energy Level
Not Available
  
3,023.30 kJ/mol
  
26
4th Energy Level
Not Available
  
4,351.50 kJ/mol
  
29
5th Energy Level
Not Available
  
5,692.60 kJ/mol
  
28
Electrochemical Equivalent
1.35 g/amp-hr
  
99+
Not Available
  
Electron Work Function
Not Available
  
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
  
Chemical Stability, Ionization
  
Electron Configuration
[Xe] 4f14 5d3 6s2
  
[Rn] 5f14 6d10 7s2 7p1
  
Crystal Structure
Body Centered Cubic (BCC)
  
Not Known
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
Unknown-Crystal-Structure-of-Ununtrium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Radius
Not Available
  
Covalent Radius
Not Available
  
Van der Waals Radius
Not Available
  
Atomic Volume
10.90 cm3/mol
  
99+
Not Available
  
Adjacent Atomic Numbers
  
  
Valence Electron Potential
110.00 (-eV)
  
7
Not Available
  
Lattice Constant
Not Available
  
Lattice Angles
π/2, π/2, π/2
  
NA
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
16.69 g/cm3
  
18
16.00 g/cm3
  
19
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Ductile
  
Unknown
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Paramagnetic
  
Unknown
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Unknown
  
Resistivity
131.00 nΩ·m
  
25
Not Available
  
Electrical Conductivity
0.08 10
6/cm Ω
  
27
Not Available
  
Electron Affinity
31.00 kJ/mol
  
29
Not Available
  
Specific Heat
0.14 J/(kg K)
  
37
Not Available
  
Molar Heat Capacity
25.36 J/mol·K
  
99+
Not Available
  
Thermal Conductivity
57.50 W/m·K
  
27
Not Available
  
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
6.30 µm/(m·K)
  
99+
Not Available
  
Enthalpy
  
  
Enthalpy of Vaporization
753.10 kJ/mol
  
2
Not Available
  
Enthalpy of Fusion
31.40 kJ/mol
  
3
Not Available
  
Enthalpy of Atomization
782.00 kJ/mol
  
3
Not Available
  
Standard Molar Entropy
41.50 J/mol.K
  
37
Not Available