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What is Tantalum?
Tantalum


Periodic Table
0
Symbol
Ta 0
Group Number
5 13
Period Number
6 2
Block
d block 0
Element Family
Transition Metal 0
CAS Number
7440257 55
Space Group Name
Im_ 3m 0
Space Group Number
229.00 1
Facts
0
Interesting Facts
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
0
Sources
Found in Minerals, Mining, Ores of Minerals 0
History
0
Who Discovered
Anders Gustaf Ekeberg 0
Discovery
In 1802 0
Abundance
0
Abundance In Universe
8 * 10-9 % 31
Abundance In Sun
~-9999 % 0
Abundance In Meteorites
0.00 % 49
Abundance In Earth's Crust
0.00 % 37
Abundance In Oceans
0.00 % 31
Abundance In Humans
Not Available 0
Uses
0
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.
0
Industrial Uses
Electrical Industry, Electronic Industry 0
Medical Uses
NA 0
Other Uses
Alloys 0
Biological Properties
0
Toxicity
Low Toxic 0
Present in Human Body
Yes 0
In Blood
Not Available 0
In Bone
0.03 p.p.m. 28
Physical
0
Melting Point
2,996.00 °C 4
Boiling Point
5,425.00 °C 4
Appearance
0
Physical State
Solid 0
Color
Gray Blue 0
Luster
Metallic 0
Hardness
0
Mohs Hardness
6.50 5
Brinell Hardness
440.00 MPa 28
Vickers Hardness
870.00 MPa 12
Speed of Sound
3,400.00 m/s 22
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
78.00 % 6
Allotropes
No 0
α Allotropes
Not Available 0
β Allotropes
Not Available 0
γ Allotropes
Not Available 0
Chemical
0
Chemical Formula
Ta 0
Isotopes
0
Known Isotopes
31 8
Electronegativity
0
Pauling Electronegativity
1.50 27
Sanderson Electronegativity
Not Available 0
Allred Rochow Electronegativity
1.33 22
Mulliken-Jaffe Electronegativity
Not Available 0
Allen Electronegativity
1.34 33
Electropositivity
0
Pauling Electropositivity
2.50 27
Ionization Energies
0
1st Energy Level
761.00 kJ/mol 18
2nd Energy Level
1,500.00 kJ/mol 40
3rd Energy Level
Not Available 0
4th Energy Level
Not Available 0
5th Energy Level
Not Available 0
6th Energy Level
Not Available 0
7th Energy level
Not Available 0
8th Energy Level
Not Available 0
9th Energy Level
Not Available 0
10th Energy Level
Not Available 0
11th Energy Level
Not Available 0
12th Energy Level
Not Available 0
13th Energy Level
Not Available 0
14th Energy Level
Not Available 0
15th Energy Level
Not Available 0
16th Energy Level
Not Available 0
17th Energy Level
Not Available 0
18th Energy Level
Not Available 0
19th Energy Level
Not Available 0
20th Energy Level
Not Available 0
21st Energy Level
Not Available 0
22nd Energy Level
Not Available 0
23rd Energy Level
Not Available 0
24th Energy Level
Not Available 0
25th Energy Level
Not Available 0
26th Energy Level
Not Available 0
27th Energy Level
Not Available 0
28th Energy Level
Not Available 0
29th Energy Level
Not Available 0
30th Energy Level
Not Available 0
Electrochemical Equivalent
1.35 g/amp-hr 49
Electron Work Function
4.25 eV 21
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility 0
Atomic
0
Atomic Number
73 43
Electron Configuration
[Xe] 4f14 5d3 6s2 0
Crystal Structure
Body Centered Cubic (BCC) 0
Crystal Lattice
BCC-Crystal-Structure-.jpg#100 0
Atom
0
Number of Protons
73 42
Number of Neutrons
108 28
Number of Electrons
73 42
Radius of an Atom
0
Atomic Radius
146.00 pm 35
Covalent Radius
170.00 pm 25
Van der Waals Radius
200.00 pm 28
Atomic Weight
180.95 amu 38
Atomic Volume
10.90 cm3/mol 44
Adjacent Atomic Numbers
0
Previous Element
63 0
Next Element
32 0
Valence Electron Potential
110.00 (-eV) 7
Lattice Constant
330.13 pm 50
Lattice Angles
π/2, π/2, π/2 0
Lattice C/A Ratio
Not Available 0
Mechanical
0
Density
0
Density At Room Temperature
16.69 g/cm3 18
Density When Liquid (at m.p.)
15.00 g/cm3 9
Tensile Strength
Not Available 0
Viscosity
Not Available 0
Vapor Pressure
0
Vapor Pressure at 1000 K
Not Available 0
Vapor Pressure at 2000 K
0.00 (Pa) 31
Elasticity properties
0
Shear Modulus
69.00 GPa 13
Bulk Modulus
200.00 GPa 8
Young's Modulus
186.00 GPa 13
Poisson Ratio
0.34 10
Other Mechanical Properties
Ductile 0
Magnetic
0
Magnetic Characteristics
0
Specific Gravity
16.65 11
Magnetic Ordering
Paramagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Electrical Properties
0
Electrical Property
Conductor 0
Resistivity
131.00 nΩ·m 25
Electrical Conductivity
0.08 106/cm Ω 27
Electron Affinity
31.00 kJ/mol 29
Thermal
0
Specific Heat
0.14 J/(kg K) 37
Molar Heat Capacity
25.36 J/mol·K 41
Thermal Conductivity
57.50 W/m·K 27
Critical Temperature
Not Available 0
Thermal Expansion
6.30 µm/(m·K) 52
Enthalpy
0
Enthalpy of Vaporization
753.10 kJ/mol 2
Enthalpy of Fusion
31.40 kJ/mol 3
Enthalpy of Atomization
782.00 kJ/mol 3
Standard Molar Entropy
41.50 J/mol.K 37
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