1 Periodic Table
1.1 Symbol
1.2 Group Number
2.5 Period Number
2.6 Block
2.7 Element Family
2.8 CAS Number
74403597440462
7429905
54386242
2.9 Space Group Name
2.10 Space Group Number
4 Facts
4.1 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
4.2 Sources
Obtained By Bombarding Plutonium with Neutrons
Earth's crust, Found in Minerals, Mining, Ores of Minerals
4.3 History
4.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Robert Bunsen and Gustav Kirchhoff
4.3.2 Discovery
4.4 Abundance
4.4.1 Abundance In Universe
5.1.1 Abundance In Sun
~-9999 %~0.0000008 %
1E-08
0.1
5.1.3 Abundance In Meteorites
6.3.1 Abundance In Earth's Crust
6.5.2 Abundance In Oceans
7.1.1 Abundance In Humans
8 Uses
8.1 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.
- The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
-
In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
8.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
8.1.2 Medical Uses
8.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
8.2 Biological Properties
8.2.1 Toxicity
8.2.2 Present in Human Body
8.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
8.3.2 In Bone
0.00 p.p.m.0.05 p.p.m.
0
170000
9 Physical
9.1 Melting Point
994.00 °C28.50 °C
27
3410
9.3 Boiling Point
2,607.00 °C678.40 °C
147
5660
9.5 Appearance
9.5.1 Physical State
9.5.2 Color
Silvery White
Silvery Gold
9.5.3 Luster
9.6 Hardness
9.6.1 Mohs Hardness
10.2.2 Brinell Hardness
10.3.1 Vickers Hardness
10.6 Speed of Sound
11.3 Optical Properties
11.3.1 Refractive Index
11.3.3 Reflectivity
11.4 Allotropes
11.4.1 α Allotropes
Not Available
Not Available
11.4.2 β Allotropes
Not Available
Not Available
11.4.3 γ Allotropes
Not Available
Not Available
12 Chemical
12.1 Chemical Formula
12.2 Isotopes
12.2.1 Known Isotopes
12.5 Electronegativity
12.5.1 Pauling Electronegativity
12.6.3 Sanderson Electronegativity
12.6.6 Allred Rochow Electronegativity
12.6.9 Mulliken-Jaffe Electronegativity
12.6.11 Allen Electronegativity
12.7 Electropositivity
12.7.1 Pauling Electropositivity
12.9 Ionization Energies
12.9.1 1st Energy Level
578.00 kJ/mol375.70 kJ/mol
375.7
26130
12.9.2 2nd Energy Level
1,158.00 kJ/mol2,234.30 kJ/mol
710.2162
28750
12.10.2 3rd Energy Level
2,132.00 kJ/mol3,400.00 kJ/mol
1600
34230
12.10.5 4th Energy Level
3,493.00 kJ/molNA
2780
37066
12.10.8 5th Energy Level
12.10.11 6th Energy Level
12.10.14 7th Energy level
12.10.16 8th Energy Level
12.10.18 9th Energy Level
12.10.20 10th Energy Level
12.10.23 11th Energy Level
12.10.27 12th Energy Level
12.10.30 13th Energy Level
12.10.33 14th Energy Level
12.10.36 15th Energy Level
12.10.38 16th Energy Level
12.10.42 17th Energy Level
12.10.44 18th Energy Level
12.10.47 19th Energy Level
12.10.50 20th Energy Level
12.10.52 21st Energy Level
12.10.55 22nd Energy Level
12.10.58 23rd Energy Level
12.10.59 24th Energy Level
12.10.62 25th Energy Level
12.10.65 26th Energy Level
12.10.68 27th Energy Level
12.11.1 28th Energy Level
12.11.3 29th Energy Level
12.11.5 30th Energy Level
12.13 Electrochemical Equivalent
3.02 g/amp-hr4.96 g/amp-hr
0.16812
8.3209
13.2 Electron Work Function
13.3 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
14 Atomic
14.1 Atomic Number
14.5 Electron Configuration
14.6 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
14.6.1 Crystal Lattice
14.7 Atom
14.7.1 Number of Protons
14.8.2 Number of Neutrons
14.9.2 Number of Electrons
15.3 Radius of an Atom
15.3.1 Atomic Radius
173.00 pm265.00 pm
112
265
15.6.3 Covalent Radius
180.00 pm244.00 pm
96
260
15.6.4 Van der Waals Radius
244.00 pm343.00 pm
139
348
15.7 Atomic Weight
243.00 amu132.91 amu
6.94
294
15.9 Atomic Volume
17.86 cm3/mol71.07 cm3/mol
1.39
71.07
15.12 Adjacent Atomic Numbers
15.12.1 Previous Element
15.12.2 Next Element
15.13 Valence Electron Potential
44.00 (-eV)8.62 (-eV)
8
392.42
15.14 Lattice Constant
346.81 pm614.10 pm
228.58
891.25
15.17 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
15.18 Lattice C/A Ratio
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
12.00 g/cm31.93 g/cm3
0.534
40.7
16.3.1 Density When Liquid (at m.p.)
16.6 Tensile Strength
16.9 Viscosity
16.11 Vapor Pressure
16.11.1 Vapor Pressure at 1000 K
17.1.2 Vapor Pressure at 2000 K
18.2 Elasticity properties
18.2.1 Shear Modulus
18.2.4 Bulk Modulus
18.3.1 Young's Modulus
18.5 Poisson Ratio
18.8 Other Mechanical Properties
19 Magnetic
19.1 Magnetic Characteristics
19.1.1 Specific Gravity
19.1.3 Magnetic Ordering
Paramagnetic
Paramagnetic
19.1.4 Permeability
19.3.2 Susceptibility
19.5 Electrical Properties
19.5.1 Electrical Property
19.5.2 Resistivity
0.69 nΩ·m205.00 nΩ·m
0.18
961
19.5.4 Electrical Conductivity
0.02 106/cm Ω0.05 106/cm Ω
0.00666
0.63
19.5.7 Electron Affinity
20 Thermal
20.1 Specific Heat
0.11 J/(kg K)0.24 J/(kg K)
0.11
3.6
21.2 Molar Heat Capacity
62.70 J/mol·K32.21 J/mol·K
16.443
62.7
21.3 Thermal Conductivity
10.00 W/m·K35.90 W/m·K
6.3
429
21.5 Critical Temperature
21.6 Thermal Expansion
21.7 Enthalpy
21.7.1 Enthalpy of Vaporization
NA65.90 kJ/mol
7.32
799.1
21.7.3 Enthalpy of Fusion
14.39 kJ/mol2.10 kJ/mol
2.1
35.23
22.1.1 Enthalpy of Atomization
268.00 kJ/mol78.20 kJ/mol
61.5
837
23.3 Standard Molar Entropy
NA85.20 J/mol.K
9.5
198.1