1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Lanthanide
Transition Metal
1.6 CAS Number
74401227440257
7429905
54386242
1.3 Space Group Name
1.4 Space Group Number
2 Facts
2.1 Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- Tantalum metal is known as corrosion resistance.
- Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
2.2 Sources
Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Anders Gustaf Ekeberg
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.7.3 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
3.1.1 Abundance In Meteorites
4.4.3 Abundance In Earth's Crust
4.5.3 Abundance In Oceans
4.6.2 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- It is used for research purpose. Very small amount of this metal is used in atomic batteries.
- Its radioactive decay is used for a phosphor to give off light. The light emitted is converted into electricity.
- 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.
5.1.1 Industrial Uses
NA
Electrical Industry, Electronic Industry
5.1.2 Medical Uses
5.1.4 Other Uses
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-3NA
0
1970
5.3.1 In Bone
6 Physical
6.1 Melting Point
1,042.00 °C2,996.00 °C
27
3410
7.3 Boiling Point
3,000.00 °C5,425.00 °C
147
5660
8.2 Appearance
8.2.1 Physical State
8.3.1 Color
8.3.2 Luster
8.4 Hardness
8.4.1 Mohs Hardness
8.6.4 Brinell Hardness
8.7.1 Vickers Hardness
8.10 Speed of Sound
9.3 Optical Properties
9.3.1 Refractive Index
9.4.3 Reflectivity
9.5 Allotropes
9.5.1 α Allotropes
Not Available
Not Available
9.5.2 β Allotropes
Not Available
Not Available
9.5.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
10.2 Isotopes
10.2.1 Known Isotopes
10.3 Electronegativity
10.3.1 Pauling Electronegativity
10.4.2 Sanderson Electronegativity
10.5.2 Allred Rochow Electronegativity
10.5.4 Mulliken-Jaffe Electronegativity
10.5.7 Allen Electronegativity
10.6 Electropositivity
10.6.1 Pauling Electropositivity
10.7 Ionization Energies
10.7.1 1st Energy Level
540.00 kJ/mol761.00 kJ/mol
375.7
26130
10.7.4 2nd Energy Level
1,050.00 kJ/mol1,500.00 kJ/mol
710.2162
28750
10.7.6 3rd Energy Level
2,150.00 kJ/molNA
1600
34230
10.7.10 4th Energy Level
3,970.00 kJ/molNA
2780
37066
10.7.13 5th Energy Level
10.7.16 6th Energy Level
10.7.18 7th Energy level
10.7.21 8th Energy Level
10.7.23 9th Energy Level
10.7.25 10th Energy Level
10.7.29 11th Energy Level
10.7.31 12th Energy Level
10.7.34 13th Energy Level
10.7.37 14th Energy Level
10.7.40 15th Energy Level
10.7.43 16th Energy Level
10.8.1 17th Energy Level
10.8.4 18th Energy Level
10.8.6 19th Energy Level
10.8.8 20th Energy Level
10.9.2 21st Energy Level
10.9.4 22nd Energy Level
11.1.2 23rd Energy Level
11.2.1 24th Energy Level
11.5.2 25th Energy Level
11.6.1 26th Energy Level
12.1.1 27th Energy Level
12.1.3 28th Energy Level
12.4.2 29th Energy Level
12.4.4 30th Energy Level
12.5 Electrochemical Equivalent
1.80 g/amp-hr1.35 g/amp-hr
0.16812
8.3209
12.7 Electron Work Function
12.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
13 Atomic
13.1 Atomic Number
13.2 Electron Configuration
[Xe] 4f5 6s2
[Xe] 4f14 5d3 6s2
13.4 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
13.4.1 Crystal Lattice
13.5 Atom
13.5.1 Number of Protons
13.6.1 Number of Neutrons
13.8.1 Number of Electrons
13.13 Radius of an Atom
13.13.1 Atomic Radius
183.00 pm146.00 pm
112
265
13.15.1 Covalent Radius
199.00 pm170.00 pm
96
260
13.19.1 Van der Waals Radius
236.00 pm200.00 pm
139
348
15.2 Atomic Weight
145.00 amu180.95 amu
6.94
294
15.3 Atomic Volume
22.39 cm3/mol10.90 cm3/mol
1.39
71.07
15.6 Adjacent Atomic Numbers
15.6.1 Previous Element
15.6.2 Next Element
15.7 Valence Electron Potential
44.10 (-eV)110.00 (-eV)
8
392.42
15.10 Lattice Constant
NA330.13 pm
228.58
891.25
15.13 Lattice Angles
15.14 Lattice C/A Ratio
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
7.26 g/cm316.69 g/cm3
0.534
40.7
16.2.2 Density When Liquid (at m.p.)
16.4 Tensile Strength
16.6 Viscosity
17.2 Vapor Pressure
17.2.1 Vapor Pressure at 1000 K
17.2.6 Vapor Pressure at 2000 K
17.4 Elasticity properties
17.4.1 Shear Modulus
18.00 GPa69.00 GPa
1.3
222
18.1.1 Bulk Modulus
33.00 GPa200.00 GPa
1.6
462
19.3.3 Young's Modulus
46.00 GPa186.00 GPa
1.7
528
19.6 Poisson Ratio
19.9 Other Mechanical Properties
20 Magnetic
20.1 Magnetic Characteristics
20.1.1 Specific Gravity
20.1.4 Magnetic Ordering
Paramagnetic
Paramagnetic
20.1.5 Permeability
20.2.1 Susceptibility
1.4 Electrical Properties
1.4.1 Electrical Property
1.4.2 Resistivity
0.75 nΩ·m131.00 nΩ·m
0.18
961
1.7.1 Electrical Conductivity
NA0.08 106/cm Ω
0.00666
0.63
3.4.2 Electron Affinity
50.00 kJ/mol31.00 kJ/mol
0
222.8
4 Thermal
4.1 Specific Heat
0.18 J/(kg K)0.14 J/(kg K)
0.11
3.6
4.3 Molar Heat Capacity
NA25.36 J/mol·K
16.443
62.7
5.3 Thermal Conductivity
17.90 W/m·K57.50 W/m·K
6.3
429
6.4 Critical Temperature
6.7 Thermal Expansion
9.00 µm/(m·K)6.30 µm/(m·K)
4.5
97
6.9 Enthalpy
6.9.1 Enthalpy of Vaporization
NA753.10 kJ/mol
7.32
799.1
1.3.2 Enthalpy of Fusion
7.50 kJ/mol31.40 kJ/mol
2.1
35.23
2.3.1 Enthalpy of Atomization
310.00 kJ/mol782.00 kJ/mol
61.5
837
2.8 Standard Molar Entropy
NA41.50 J/mol.K
9.5
198.1