1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.6 Block
1.7 Element Family
Actinide
Probably Post-Transition
1.8 CAS Number
744035954084707
7429905
54386242
1.11 Space Group Name
1.12 Space Group Number
2 Facts
2.1 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).
Not Available
2.2 Sources
Obtained By Bombarding Plutonium with Neutrons
Synthetically Produced
2.3 History
2.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
3.1.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
3.1.4 Abundance In Meteorites
3.1.5 Abundance In Earth's Crust
3.3.1 Abundance In Oceans
3.4.2 Abundance In Humans
4 Uses
4.1 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.
- Currently known uses of Ununtrium metal are limited to research purpose only.
4.1.1 Industrial Uses
4.1.2 Medical Uses
4.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.00 Blood/mg dm-3NA
0
1970
4.3.2 In Bone
5 Physical
5.1 Melting Point
994.00 °C430.00 °C
27
3410
5.2 Boiling Point
2,607.00 °C1,130.00 °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
6.1.2 Brinell Hardness
6.1.5 Vickers Hardness
6.2 Speed of Sound
6.4 Optical Properties
6.4.1 Refractive Index
6.4.3 Reflectivity
6.5 Allotropes
6.5.1 α Allotropes
Not Available
Not Available
6.5.2 β Allotropes
Not Available
Not Available
6.5.3 γ Allotropes
Not Available
Not Available
7 Chemical
7.1 Chemical Formula
7.2 Isotopes
7.2.1 Known Isotopes
7.3 Electronegativity
7.3.1 Pauling Electronegativity
8.1.1 Sanderson Electronegativity
8.2.1 Allred Rochow Electronegativity
8.3.1 Mulliken-Jaffe Electronegativity
8.4.1 Allen Electronegativity
8.6 Electropositivity
8.6.1 Pauling Electropositivity
8.8 Ionization Energies
8.8.1 1st Energy Level
578.00 kJ/mol704.90 kJ/mol
375.7
26130
8.8.2 2nd Energy Level
1,158.00 kJ/mol2,238.50 kJ/mol
710.2162
28750
8.8.4 3rd Energy Level
2,132.00 kJ/mol3,023.30 kJ/mol
1600
34230
8.8.6 4th Energy Level
3,493.00 kJ/mol4,351.50 kJ/mol
2780
37066
8.9.1 5th Energy Level
NA5,692.60 kJ/mol
4305.2
97510
8.9.2 6th Energy Level
8.9.3 7th Energy level
8.9.4 8th Energy Level
8.9.5 9th Energy Level
8.9.6 10th Energy Level
8.9.7 11th Energy Level
8.9.8 12th Energy Level
8.9.9 13th Energy Level
8.9.10 14th Energy Level
8.9.11 15th Energy Level
8.9.12 16th Energy Level
8.9.13 17th Energy Level
8.9.14 18th Energy Level
8.9.15 19th Energy Level
8.9.16 20th Energy Level
8.9.17 21st Energy Level
8.9.18 22nd Energy Level
8.9.19 23rd Energy Level
8.9.20 24th Energy Level
8.9.21 25th Energy Level
8.9.22 26th Energy Level
8.9.23 27th Energy Level
8.9.24 28th Energy Level
8.9.25 29th Energy Level
8.9.26 30th Energy Level
8.10 Electrochemical Equivalent
3.02 g/amp-hrNA
0.16812
8.3209
8.11 Electron Work Function
8.12 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Ionization
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Rn] 5f7 7s2
[Rn] 5f14 6d10 7s2 7p1
9.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Not Known
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.2 Number of Neutrons
9.4.3 Number of Electrons
9.5 Radius of an Atom
9.5.1 Atomic Radius
9.5.2 Covalent Radius
9.5.3 Van der Waals Radius
9.6 Atomic Weight
243.00 amu286.00 amu
6.94
294
9.7 Atomic Volume
17.86 cm3/molNA
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
346.81 pmNA
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
12.00 g/cm316.00 g/cm3
0.534
40.7
10.1.2 Density When Liquid (at m.p.)
10.2 Tensile Strength
10.3 Viscosity
10.4 Vapor Pressure
10.4.1 Vapor Pressure at 1000 K
10.4.2 Vapor Pressure at 2000 K
10.5 Elasticity properties
10.5.1 Shear Modulus
10.5.2 Bulk Modulus
10.5.3 Young's Modulus
10.6 Poisson Ratio
10.7 Other Mechanical Properties
11 Magnetic
11.1 Magnetic Characteristics
11.1.1 Specific Gravity
11.1.2 Magnetic Ordering
11.1.3 Permeability
11.1.4 Susceptibility
11.2 Electrical Properties
11.2.1 Electrical Property
11.2.2 Resistivity
11.2.3 Electrical Conductivity
0.02 106/cm ΩNA
0.00666
0.63
11.2.4 Electron Affinity
12 Thermal
12.1 Specific Heat
12.2 Molar Heat Capacity
62.70 J/mol·KNA
16.443
62.7
12.3 Thermal Conductivity
12.4 Critical Temperature
12.5 Thermal Expansion
12.6 Enthalpy
12.6.1 Enthalpy of Vaporization
12.6.2 Enthalpy of Fusion
12.6.3 Enthalpy of Atomization
12.7 Standard Molar Entropy