1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
Probably Post-Transition
Actinide
1.7 CAS Number
540856427440359
7429905
54386242
1.10 Space Group Name
1.11 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
2.4.3 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.4.4 Abundance In Meteorites
2.5.1 Abundance In Earth's Crust
2.5.2 Abundance In Oceans
2.6.2 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
4.2.2 In Bone
5 Physical
5.1 Melting Point
400.00 °C994.00 °C
27
3410
5.3 Boiling Point
1,100.00 °C2,607.00 °C
147
5660
5.4 Appearance
5.4.1 Physical State
5.4.2 Color
5.4.3 Luster
5.5 Hardness
5.5.1 Mohs Hardness
5.5.3 Brinell Hardness
5.5.5 Vickers Hardness
5.6 Speed of Sound
5.8 Optical Properties
5.8.1 Refractive Index
5.9.2 Reflectivity
5.10 Allotropes
5.10.1 α Allotropes
Not Available
Not Available
5.10.2 β Allotropes
Not Available
Not Available
5.10.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.3 Electronegativity
6.3.1 Pauling Electronegativity
6.3.3 Sanderson Electronegativity
6.3.5 Allred Rochow Electronegativity
6.3.7 Mulliken-Jaffe Electronegativity
6.3.9 Allen Electronegativity
6.4 Electropositivity
6.4.1 Pauling Electropositivity
6.5 Ionization Energies
6.5.1 1st Energy Level
538.40 kJ/mol578.00 kJ/mol
375.7
26130
6.5.3 2nd Energy Level
1,756.00 kJ/mol1,158.00 kJ/mol
710.2162
28750
6.5.5 3rd Energy Level
2,653.30 kJ/mol2,132.00 kJ/mol
1600
34230
6.5.6 4th Energy Level
4,679.50 kJ/mol3,493.00 kJ/mol
2780
37066
6.5.8 5th Energy Level
5,721.60 kJ/molNA
4305.2
97510
6.5.9 6th Energy Level
6.5.11 7th Energy level
6.5.12 8th Energy Level
6.5.14 9th Energy Level
6.5.16 10th Energy Level
6.5.17 11th Energy Level
6.5.19 12th Energy Level
6.5.21 13th Energy Level
6.5.23 14th Energy Level
6.5.25 15th Energy Level
6.5.27 16th Energy Level
6.5.29 17th Energy Level
6.5.32 18th Energy Level
6.5.34 19th Energy Level
6.5.36 20th Energy Level
6.5.38 21st Energy Level
6.5.40 22nd Energy Level
6.5.42 23rd Energy Level
6.5.44 24th Energy Level
6.5.46 25th Energy Level
6.5.48 26th Energy Level
6.6.1 27th Energy Level
6.6.2 28th Energy Level
6.7.1 29th Energy Level
7.1.1 30th Energy Level
7.2 Electrochemical Equivalent
NA3.02 g/amp-hr
0.16812
8.3209
7.6 Electron Work Function
7.7 Other Chemical Properties
Chemical Stability, Ionization
Ionization, Radioactive Isotopes, Radioactivity, Solubility
8 Atomic
8.1 Atomic Number
8.3 Electron Configuration
[Rn] 5f14 6d10 7s2 7p3
[Rn] 5f7 7s2
8.4 Crystal Structure
Not Known
Double Hexagonal Close Packed (DHCP)
8.4.1 Crystal Lattice
8.5 Atom
8.5.1 Number of Protons
8.6.1 Number of Neutrons
8.9.1 Number of Electrons
8.13 Radius of an Atom
8.13.1 Atomic Radius
9.1.2 Covalent Radius
9.1.4 Van der Waals Radius
9.3 Atomic Weight
289.00 amu243.00 amu
6.94
294
9.6 Atomic Volume
NA17.86 cm3/mol
1.39
71.07
9.8 Adjacent Atomic Numbers
9.8.1 Previous Element
9.8.2 Next Element
9.9 Valence Electron Potential
9.10 Lattice Constant
NA346.81 pm
228.58
891.25
9.11 Lattice Angles
9.12 Lattice C/A Ratio
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
4.51 g/cm312.00 g/cm3
0.534
40.7
11.1.4 Density When Liquid (at m.p.)
11.3 Tensile Strength
11.4 Viscosity
11.5 Vapor Pressure
11.5.1 Vapor Pressure at 1000 K
12.2.1 Vapor Pressure at 2000 K
12.4 Elasticity properties
12.4.1 Shear Modulus
12.6.1 Bulk Modulus
12.7.3 Young's Modulus
12.8 Poisson Ratio
12.10 Other Mechanical Properties
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
13.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
13.1.3 Permeability
13.1.4 Susceptibility
13.2 Electrical Properties
13.2.1 Electrical Property
13.2.2 Resistivity
13.2.3 Electrical Conductivity
NA0.02 106/cm Ω
0.00666
0.63
13.2.4 Electron Affinity
14 Thermal
14.1 Specific Heat
14.2 Molar Heat Capacity
NA62.70 J/mol·K
16.443
62.7
14.3 Thermal Conductivity
14.4 Critical Temperature
14.5 Thermal Expansion
14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
14.6.2 Enthalpy of Fusion
14.6.3 Enthalpy of Atomization
14.7 Standard Molar Entropy