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Ta Element



Periodic Table

Symbol
Ta

Group Number
5 13

Period Number
6 2

Block
d block

Element Family
Transition Metal

CAS Number
7440257 55

Space Group Name
Im_ 3m

Space Group Number
229.00 2

Facts

Interesting Facts
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.

Sources
Found in Minerals, Mining, Ores of Minerals

History

Who Discovered
Anders Gustaf Ekeberg

Discovery
In 1802

Abundance

Abundance In Universe
0.00 % 32

Abundance In Sun
0.00 % 18

Abundance In Meteorites
0.00 % 49

Abundance In Earth's Crust
0.00 % 37

Abundance In Oceans
0.00 % 31

Abundance In Humans
0.00 % 24

Uses

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.

Industrial Uses
Electrical Industry, Electronic Industry

Medical Uses
-

Other Uses
Alloys

Biological Properties

Toxicity
Low Toxic

Present in Human Body
Yes

In Blood
0.00 Blood/mg dm-3 37

In Bone
0.03 p.p.m. 33

Physical

Melting Point
2,996.00 °C 4

Boiling Point
5,425.00 °C 4

Appearance

Physical State
Solid

Color
Gray Blue

Luster
Metallic

Hardness

Mohs Hardness
6.50 5

Brinell Hardness
440.00 MPa 33

Vickers Hardness
870.00 MPa 19

Speed of Sound
3,400.00 m/s 33

Optical Properties

Refractive Index
2.15 10

Reflectivity
78.00 % 8

Allotropes
No

α Allotropes
-

β Allotropes
-

γ Allotropes
-

Chemical

Chemical Formula
Ta

Isotopes

Known Isotopes
31 8

Electronegativity

Pauling Electronegativity
1.50 28

Sanderson Electronegativity
1.50 18

Allred Rochow Electronegativity
1.33 23

Mulliken-Jaffe Electronegativity
1.50 26

Allen Electronegativity
1.34 38

Electropositivity

Pauling Electropositivity
2.50 27

Ionization Energies

1st Energy Level
761.00 kJ/mol 18

2nd Energy Level
1,500.00 kJ/mol 41

3rd Energy Level
761.00 kJ/mol 88

4th Energy Level
7,610.00 kJ/mol 9

5th Energy Level
7,610.00 kJ/mol 19

6th Energy Level
7,610.00 kJ/mol 36

7th Energy level
7,610.00 kJ/mol 30

8th Energy Level
7,610.00 kJ/mol 30

9th Energy Level
7,610.00 kJ/mol 26

10th Energy Level
7,610.00 kJ/mol 30

11th Energy Level
7,610.00 kJ/mol 29

12th Energy Level
7,610.00 kJ/mol 47

13th Energy Level
7,610.00 kJ/mol 22

14th Energy Level
7,610.00 kJ/mol 19

15th Energy Level
76,100.00 kJ/mol 19

16th Energy Level
76,100.00 kJ/mol 14

17th Energy Level
761.00 kJ/mol 35

18th Energy Level
7,610.00 kJ/mol 25

19th Energy Level
761.00 kJ/mol 32

20th Energy Level
761.00 kJ/mol 26

21st Energy Level
761.00 kJ/mol 44

22nd Energy Level
761.00 kJ/mol 20

23rd Energy Level
761.00 kJ/mol 45

24th Energy Level
761.00 kJ/mol 16

25th Energy Level
761.00 kJ/mol 16

26th Energy Level
761.00 kJ/mol 16

27th Energy Level
761.00 kJ/mol 15

28th Energy Level
761.00 kJ/mol 21

29th Energy Level
761.00 kJ/mol 22

30th Energy Level
761.00 kJ/mol 16

Electrochemical Equivalent
1.35 g/amp-hr 53

Electron Work Function
4.25 eV 28

Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility

Atomic

Atomic Number
73 43

Electron Configuration
[Xe] 4f14 5d3 6s2

Crystal Structure
Body Centered Cubic (BCC)

Crystal Lattice
BCC-Crystal-Structure-.jpg#100

Atom

Number of Protons
73 42

Number of Neutrons
108 29

Number of Electrons
73 42

Radius of an Atom

Atomic Radius
146.00 pm 37

Covalent Radius
170.00 pm 27

Van der Waals Radius
200.00 pm 35

Atomic Weight
180.95 amu 38

Atomic Volume
10.90 cm3/mol 62

Adjacent Atomic Numbers

Previous Element
63

Next Element
32

Valence Electron Potential
110.00 (-eV) 7

Lattice Constant
330.13 pm 57

Lattice Angles
π/2, π/2, π/2

Lattice C/A Ratio
1.41 51

Mechanical

Density

Density At Room Temperature
16.69 g/cm3 18

Density When Liquid (at m.p.)
15.00 g/cm3 23

Tensile Strength
180.00 MPa 20

Viscosity
0.00 25

Vapor Pressure

Vapor Pressure at 1000 K
0.00 (Pa) 37

Vapor Pressure at 2000 K
0.00 (Pa) 43

Elasticity properties

Shear Modulus
69.00 GPa 13

Bulk Modulus
200.00 GPa 8

Young's Modulus
186.00 GPa 14

Poisson Ratio
0.34 10

Other Mechanical Properties
Ductile

Magnetic

Magnetic Characteristics

Specific Gravity
16.65 20

Magnetic Ordering
Paramagnetic

Permeability
0.00 H/m 17

Susceptibility
0.00 27

Electrical Properties

Electrical Property
Conductor

Resistivity
131.00 nΩ·m 25

Electrical Conductivity
0.08 106/cm Ω 32

Electron Affinity
31.00 kJ/mol 35

Thermal

Specific Heat
0.14 J/(kg K) 38

Molar Heat Capacity
25.36 J/mol·K 50

Thermal Conductivity
57.50 W/m·K 27

Critical Temperature
3,290.00 K 4

Thermal Expansion
6.30 µm/(m·K) 67

Enthalpy

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 51

Summary >>
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