1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.11 Block
1.12 Element Family
Transition Metal
Transition Metal
1.14 CAS Number
74400427440257
7429905
54386242
1.19 Space Group Name
1.20 Space Group Number
4 Facts
4.1 Interesting Facts
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
- Tantalum metal is known as corrosion resistance.
- Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
4.3 Sources
Found As a By-product, Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
4.4 History
4.4.1 Who Discovered
Smithson Tennant
Anders Gustaf Ekeberg
4.4.2 Discovery
4.5 Abundance
4.5.1 Abundance In Universe
3 * 10-7 %8 * 10-9 %
5E-09
0.11
4.5.5 Abundance In Sun
~0.0000002 %~-9999 %
1E-08
0.1
4.5.8 Abundance In Meteorites
4.5.13 Abundance In Earth's Crust
1.3.3 Abundance In Oceans
2.4.3 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
-
It is also used as industrial catalyst to speed up the chemical reaction.
- 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.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Electrical Industry, Electronic Industry
3.1.2 Medical Uses
3.1.4 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
4.10.1 In Bone
8 Physical
8.1 Melting Point
3,045.00 °C2,996.00 °C
27
3410
8.4 Boiling Point
5,027.00 °C5,425.00 °C
147
5660
9.3 Appearance
9.3.1 Physical State
9.3.2 Color
Silvery Bluish-Gray
Gray Blue
9.3.3 Luster
9.4 Hardness
9.4.1 Mohs Hardness
9.7.2 Brinell Hardness
3,490.00 MPa440.00 MPa
0.14
3490
9.13.6 Vickers Hardness
11.3 Speed of Sound
4,940.00 m/s3,400.00 m/s
818
16200
12.8 Optical Properties
12.8.1 Refractive Index
12.8.5 Reflectivity
1.3 Allotropes
1.3.1 α Allotropes
Not Available
Not Available
1.3.2 β Allotropes
Not Available
Not Available
1.3.3 γ Allotropes
Not Available
Not Available
2 Chemical
2.1 Chemical Formula
2.2 Isotopes
2.2.1 Known Isotopes
7.5 Electronegativity
7.5.1 Pauling Electronegativity
7.7.4 Sanderson Electronegativity
7.9.2 Allred Rochow Electronegativity
7.9.6 Mulliken-Jaffe Electronegativity
8.1.7 Allen Electronegativity
7.7 Electropositivity
7.7.1 Pauling Electropositivity
8.3 Ionization Energies
8.3.1 1st Energy Level
840.00 kJ/mol761.00 kJ/mol
375.7
26130
9.3.1 2nd Energy Level
1,309.80 kJ/mol1,500.00 kJ/mol
710.2162
28750
9.3.5 3rd Energy Level
1,600.00 kJ/molNA
1600
34230
9.7.4 4th Energy Level
10.1.1 5th Energy Level
10.3.1 6th Energy Level
10.4.1 7th Energy level
10.6.3 8th Energy Level
10.9.2 9th Energy Level
10.10.1 10th Energy Level
11.1.1 11th Energy Level
11.3.2 12th Energy Level
12.4.1 13th Energy Level
13.1.2 14th Energy Level
7.2.2 15th Energy Level
7.4.1 16th Energy Level
7.6.1 17th Energy Level
8.1.3 18th Energy Level
8.3.2 19th Energy Level
8.4.3 20th Energy Level
8.4.7 21st Energy Level
8.7.2 22nd Energy Level
8.8.8 23rd Energy Level
9.2.3 24th Energy Level
9.2.5 25th Energy Level
9.4.2 26th Energy Level
9.5.3 27th Energy Level
11.1.1 28th Energy Level
11.2.1 29th Energy Level
11.6.2 30th Energy Level
11.8 Electrochemical Equivalent
1.77 g/amp-hr1.35 g/amp-hr
0.16812
8.3209
12.2 Electron Work Function
12.9 Other Chemical Properties
Chemical Stability, Ionization, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
13 Atomic
13.1 Atomic Number
13.4 Electron Configuration
[Xe] 4f14 5d6 6s2
[Xe] 4f14 5d3 6s2
13.5 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
13.5.1 Crystal Lattice
13.6 Atom
13.6.1 Number of Protons
13.7.1 Number of Neutrons
13.9.2 Number of Electrons
13.13 Radius of an Atom
13.13.1 Atomic Radius
133.80 pm146.00 pm
112
265
13.15.1 Covalent Radius
13.16.1 Van der Waals Radius
216.00 pm200.00 pm
139
348
13.19 Atomic Weight
190.23 amu180.95 amu
6.94
294
14.4 Atomic Volume
8.49 cm3/mol10.90 cm3/mol
1.39
71.07
14.6 Adjacent Atomic Numbers
14.6.1 Previous Element
14.6.2 Next Element
14.7 Valence Electron Potential
91.40 (-eV)110.00 (-eV)
8
392.42
14.11 Lattice Constant
273.44 pm330.13 pm
228.58
891.25
15.2 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
15.4 Lattice C/A Ratio
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
22.59 g/cm316.69 g/cm3
0.534
40.7
16.4.1 Density When Liquid (at m.p.)
20.00 g/cm315.00 g/cm3
0.512
20
16.6 Tensile Strength
16.8 Viscosity
16.10 Vapor Pressure
16.10.1 Vapor Pressure at 1000 K
16.10.6 Vapor Pressure at 2000 K
0.00 (Pa)0.00 (Pa)
2.62E-10
774
16.11 Elasticity properties
16.11.1 Shear Modulus
222.00 GPa69.00 GPa
1.3
222
16.14.1 Bulk Modulus
462.00 GPa200.00 GPa
1.6
462
18.1.7 Young's Modulus
18.5 Poisson Ratio
18.7 Other Mechanical Properties
19 Magnetic
19.1 Magnetic Characteristics
19.1.1 Specific Gravity
20.2.1 Magnetic Ordering
Paramagnetic
Paramagnetic
21.1.1 Permeability
21.2.1 Susceptibility
22.6 Electrical Properties
22.6.1 Electrical Property
22.6.2 Resistivity
81.20 nΩ·m131.00 nΩ·m
0.18
961
22.9.1 Electrical Conductivity
0.11 106/cm Ω0.08 106/cm Ω
0.00666
0.63
22.11.3 Electron Affinity
106.10 kJ/mol31.00 kJ/mol
0
222.8
23 Thermal
23.1 Specific Heat
0.13 J/(kg K)0.14 J/(kg K)
0.11
3.6
23.3 Molar Heat Capacity
24.70 J/mol·K25.36 J/mol·K
16.443
62.7
23.6 Thermal Conductivity
87.60 W/m·K57.50 W/m·K
6.3
429
23.7 Critical Temperature
23.8 Thermal Expansion
5.10 µm/(m·K)6.30 µm/(m·K)
4.5
97
23.11 Enthalpy
23.11.1 Enthalpy of Vaporization
627.60 kJ/mol753.10 kJ/mol
7.32
799.1
23.11.2 Enthalpy of Fusion
29.30 kJ/mol31.40 kJ/mol
2.1
35.23
23.12.2 Enthalpy of Atomization
669.00 kJ/mol782.00 kJ/mol
61.5
837
23.13 Standard Molar Entropy
32.60 J/mol.K41.50 J/mol.K
9.5
198.1