1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Actinide
Transition Metal
1.6 CAS Number
74403597440257
7429905
54386242
2.2 Space Group Name
2.4 Space Group Number
3 Facts
3.1 Interesting Facts
- Americium metal is produced by bombarding Plutonium with Neutrons.
- Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
- Tantalum metal is known as corrosion resistance.
- Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
3.2 Sources
Obtained By Bombarding Plutonium with Neutrons
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Anders Gustaf Ekeberg
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
4.1.1 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
4.3.2 Abundance In Meteorites
4.4.3 Abundance In Earth's Crust
4.4.5 Abundance In Oceans
4.5.1 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Americium metal is used in smoke detection alarms.
-
In the future, this metal has a potential to be used in batteries of spacecrafts.
- 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
5.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.3.2 In Blood
0.00 Blood/mg dm-3NA
0
1970
5.3.4 In Bone
0.00 p.p.m.0.03 p.p.m.
0
170000
7 Physical
7.1 Melting Point
994.00 °C2,996.00 °C
27
3410
7.3 Boiling Point
2,607.00 °C5,425.00 °C
147
5660
7.4 Appearance
7.4.1 Physical State
7.4.2 Color
7.4.4 Luster
7.5 Hardness
7.5.1 Mohs Hardness
7.5.3 Brinell Hardness
7.7.2 Vickers Hardness
7.8 Speed of Sound
7.9 Optical Properties
7.9.1 Refractive Index
7.9.3 Reflectivity
7.10 Allotropes
7.10.1 α Allotropes
Not Available
Not Available
7.10.2 β Allotropes
Not Available
Not Available
7.10.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
8.3 Electronegativity
8.3.1 Pauling Electronegativity
8.3.4 Sanderson Electronegativity
8.3.7 Allred Rochow Electronegativity
8.3.9 Mulliken-Jaffe Electronegativity
8.3.12 Allen Electronegativity
8.4 Electropositivity
8.4.1 Pauling Electropositivity
8.5 Ionization Energies
8.5.1 1st Energy Level
578.00 kJ/mol761.00 kJ/mol
375.7
26130
8.5.4 2nd Energy Level
1,158.00 kJ/mol1,500.00 kJ/mol
710.2162
28750
8.5.7 3rd Energy Level
2,132.00 kJ/molNA
1600
34230
8.5.11 4th Energy Level
3,493.00 kJ/molNA
2780
37066
8.5.14 5th Energy Level
8.6.1 6th Energy Level
8.7.1 7th Energy level
9.1.1 8th Energy Level
9.4.2 9th Energy Level
9.4.5 10th Energy Level
9.5.2 11th Energy Level
9.5.5 12th Energy Level
9.7.1 13th Energy Level
9.10.1 14th Energy Level
10.1.2 15th Energy Level
10.1.4 16th Energy Level
10.2.1 17th Energy Level
10.4.2 18th Energy Level
10.4.4 19th Energy Level
10.5.2 20th Energy Level
10.5.4 21st Energy Level
10.5.6 22nd Energy Level
10.6.1 23rd Energy Level
11.1.2 24th Energy Level
11.1.5 25th Energy Level
11.2.3 26th Energy Level
11.2.5 27th Energy Level
11.2.7 28th Energy Level
11.2.8 29th Energy Level
12.1.1 30th Energy Level
12.3 Electrochemical Equivalent
3.02 g/amp-hr1.35 g/amp-hr
0.16812
8.3209
12.6 Electron Work Function
12.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
13 Atomic
13.1 Atomic Number
13.2 Electron Configuration
[Rn] 5f7 7s2
[Xe] 4f14 5d3 6s2
13.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
13.5.1 Number of Neutrons
13.5.2 Number of Electrons
13.6 Radius of an Atom
13.6.1 Atomic Radius
173.00 pm146.00 pm
112
265
13.6.2 Covalent Radius
180.00 pm170.00 pm
96
260
13.6.3 Van der Waals Radius
244.00 pm200.00 pm
139
348
13.7 Atomic Weight
243.00 amu180.95 amu
6.94
294
13.8 Atomic Volume
17.86 cm3/mol10.90 cm3/mol
1.39
71.07
13.9 Adjacent Atomic Numbers
13.9.1 Previous Element
13.9.2 Next Element
13.10 Valence Electron Potential
44.00 (-eV)110.00 (-eV)
8
392.42
13.11 Lattice Constant
346.81 pm330.13 pm
228.58
891.25
13.12 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
13.13 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
12.00 g/cm316.69 g/cm3
0.534
40.7
14.1.2 Density When Liquid (at m.p.)
14.2 Tensile Strength
14.3 Viscosity
14.4 Vapor Pressure
14.4.1 Vapor Pressure at 1000 K
14.4.2 Vapor Pressure at 2000 K
14.5 Elasticity properties
14.5.1 Shear Modulus
14.5.2 Bulk Modulus
14.5.3 Young's Modulus
14.6 Poisson Ratio
14.7 Other Mechanical Properties
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
15.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
15.1.3 Permeability
15.1.4 Susceptibility
15.2 Electrical Properties
15.2.1 Electrical Property
15.2.2 Resistivity
0.69 nΩ·m131.00 nΩ·m
0.18
961
15.2.3 Electrical Conductivity
0.02 106/cm Ω0.08 106/cm Ω
0.00666
0.63
15.2.4 Electron Affinity
16 Thermal
16.1 Specific Heat
0.11 J/(kg K)0.14 J/(kg K)
0.11
3.6
16.2 Molar Heat Capacity
62.70 J/mol·K25.36 J/mol·K
16.443
62.7
16.3 Thermal Conductivity
10.00 W/m·K57.50 W/m·K
6.3
429
16.4 Critical Temperature
16.5 Thermal Expansion
16.6 Enthalpy
16.6.1 Enthalpy of Vaporization
NA753.10 kJ/mol
7.32
799.1
16.6.2 Enthalpy of Fusion
14.39 kJ/mol31.40 kJ/mol
2.1
35.23
16.6.3 Enthalpy of Atomization
268.00 kJ/mol782.00 kJ/mol
61.5
837
16.7 Standard Molar Entropy
NA41.50 J/mol.K
9.5
198.1