1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Probably Post-Transition
Actinide
1.6 CAS Number
540856427440359
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
Not Available
- Americium metal is produced by bombarding Plutonium with Neutrons.
- Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
2.2 Sources
Synthetically Produced
Obtained By Bombarding Plutonium with Neutrons
2.3 History
2.3.1 Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.5 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.4.8 Abundance In Meteorites
2.4.11 Abundance In Earth's Crust
2.4.16 Abundance In Oceans
2.4.19 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Currently known uses of Ununpentium metal are limited to research purpose only.
- Americium metal is used in smoke detection alarms.
-
In the future, this metal has a potential to be used in batteries of spacecrafts.
3.1.1 Industrial Uses
3.1.2 Medical Uses
3.1.3 Other Uses
Research Purposes
Alloys, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
3.2.6 In Bone
4 Physical
4.1 Melting Point
400.00 °C994.00 °C
27
3410
4.3 Boiling Point
1,100.00 °C2,607.00 °C
147
5660
4.5 Appearance
4.5.1 Physical State
4.5.2 Color
4.5.3 Luster
4.6 Hardness
4.6.1 Mohs Hardness
5.1.1 Brinell Hardness
5.4.3 Vickers Hardness
5.5 Speed of Sound
5.6 Optical Properties
5.6.1 Refractive Index
5.6.3 Reflectivity
5.9 Allotropes
5.9.1 α Allotropes
Not Available
Not Available
5.9.2 β Allotropes
Not Available
Not Available
5.9.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.4 Electronegativity
6.4.1 Pauling Electronegativity
7.1.1 Sanderson Electronegativity
7.5.2 Allred Rochow Electronegativity
7.6.1 Mulliken-Jaffe Electronegativity
7.6.3 Allen Electronegativity
7.9 Electropositivity
7.9.1 Pauling Electropositivity
7.12 Ionization Energies
7.12.1 1st Energy Level
538.40 kJ/mol578.00 kJ/mol
375.7
26130
7.14.1 2nd Energy Level
1,756.00 kJ/mol1,158.00 kJ/mol
710.2162
28750
8.1.2 3rd Energy Level
2,653.30 kJ/mol2,132.00 kJ/mol
1600
34230
8.1.5 4th Energy Level
4,679.50 kJ/mol3,493.00 kJ/mol
2780
37066
8.2.1 5th Energy Level
5,721.60 kJ/molNA
4305.2
97510
8.4.1 6th Energy Level
8.6.1 7th Energy level
8.6.2 8th Energy Level
8.8.1 9th Energy Level
8.10.1 10th Energy Level
8.12.2 11th Energy Level
9.1.2 12th Energy Level
9.1.5 13th Energy Level
9.3.1 14th Energy Level
10.2.1 15th Energy Level
10.3.3 16th Energy Level
10.3.6 17th Energy Level
10.5.2 18th Energy Level
10.5.4 19th Energy Level
10.5.7 20th Energy Level
10.5.8 21st Energy Level
10.5.11 22nd Energy Level
10.5.12 23rd Energy Level
11.1.1 24th Energy Level
11.1.2 25th Energy Level
11.3.1 26th Energy Level
11.3.2 27th Energy Level
12.1.2 28th Energy Level
12.1.3 29th Energy Level
12.2.1 30th Energy Level
12.4 Electrochemical Equivalent
NA3.02 g/amp-hr
0.16812
8.3209
12.7 Electron Work Function
12.8 Other Chemical Properties
Chemical Stability, Ionization
Ionization, Radioactive Isotopes, Radioactivity, Solubility
13 Atomic
13.1 Atomic Number
13.2 Electron Configuration
[Rn] 5f14 6d10 7s2 7p3
[Rn] 5f7 7s2
13.3 Crystal Structure
Not Known
Double Hexagonal Close Packed (DHCP)
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
13.6.2 Covalent Radius
13.6.3 Van der Waals Radius
13.7 Atomic Weight
289.00 amu243.00 amu
6.94
294
14.2 Atomic Volume
NA17.86 cm3/mol
1.39
71.07
14.4 Adjacent Atomic Numbers
14.4.1 Previous Element
14.4.2 Next Element
14.5 Valence Electron Potential
14.7 Lattice Constant
NA346.81 pm
228.58
891.25
14.9 Lattice Angles
14.10 Lattice C/A Ratio
15 Mechanical
15.1 Density
15.1.1 Density At Room Temperature
4.51 g/cm312.00 g/cm3
0.534
40.7
15.3.2 Density When Liquid (at m.p.)
15.4 Tensile Strength
15.5 Viscosity
15.6 Vapor Pressure
15.6.1 Vapor Pressure at 1000 K
15.6.2 Vapor Pressure at 2000 K
15.7 Elasticity properties
15.7.1 Shear Modulus
15.8.1 Bulk Modulus
15.8.2 Young's Modulus
15.9 Poisson Ratio
15.10 Other Mechanical Properties
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
16.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
16.1.3 Permeability
16.1.4 Susceptibility
16.2 Electrical Properties
16.2.1 Electrical Property
16.2.2 Resistivity
16.2.3 Electrical Conductivity
NA0.02 106/cm Ω
0.00666
0.63
16.2.4 Electron Affinity
17 Thermal
17.1 Specific Heat
17.2 Molar Heat Capacity
NA62.70 J/mol·K
16.443
62.7
17.3 Thermal Conductivity
17.4 Critical Temperature
17.5 Thermal Expansion
17.6 Enthalpy
17.6.1 Enthalpy of Vaporization
17.6.2 Enthalpy of Fusion
17.6.3 Enthalpy of Atomization
17.7 Standard Molar Entropy